bolt Product List and Ranking from 173 Manufacturers, Suppliers and Companies | IPROS

Last Updated： Aggregation Period:Jan 14, 2026～Feb 10, 2026
This ranking is based on the number of page views on our site.

bolt Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Jan 14, 2026～Feb 10, 2026
This ranking is based on the number of page views on our site.

  1. ヨシモトポール Tokyo//Building materials, supplies and fixtures manufacturers
  2. 岡部 Tokyo//Building materials, supplies and fixtures manufacturers
  3. 八州電工 Osaka//Building materials, supplies and fixtures manufacturers
  4. 4 null/null
  5. 5 大鳥機工 Tottori//Building materials, supplies and fixtures manufacturers
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bolt Product ranking

Last Updated： Aggregation Period:Jan 14, 2026～Feb 10, 2026
This ranking is based on the number of page views on our site.

  1. Pole adapter for electrical material joint parts of different diameters and shapes. 八州電工
  2. Construction hardware products Auto Flash Bolt (Automatic French Drop Bolt) 大鳥機工
  3. Disaster Prevention Administrative Wireless Column "Ace Mast" ヨシモトポール
  4. 4 Self-drilling lock bolt "OSDP Lock Bolt" 岡部
  5. 5 Sanko-style one-sided bolt "Stratite SH type"

bolt Product List

1～30 item / All 725 items

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Hexagon socket bolt

Hexagon socket bolt

Difficult to loosen and highly workable. A confident creation from the stainless steel specialist manufacturer Okitsu Spiral.

Hexagon socket bolts made by a stainless steel specialized manufacturer 【Features】 ○ Achieves compact fastening devices and equipment, enabling application in narrow spaces and improving workability ○ Available sizes: M3 to M8 ○ High tightening force prevents loosening ● Please try the hexagon socket bolts made by a stainless steel specialized manufacturer. ● In addition to standalone cap bolts, we also manufacture button bolts, flat bolts, and bolts with washers. For details, please contact us.

  • Safety and consumables
  • bolt

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Ultra-lightweight titanium bolt "Competition-grade titanium alloy bolt"

Ultra-lightweight titanium bolt "Competition-grade titanium alloy bolt"

For lightweighting racing cars, sports bicycles, etc.! Lightweight titanium bolts with high fastening rigidity.

The "Competition Titanium Alloy Bolt" from Okitsu Spiral is an ultra-lightweight titanium bolt that contributes to weight reduction in racing cars and competitive bicycles. By adopting high-strength β titanium alloy, it enables high fastening rigidity, and the LH-SS recess achieves higher torque transmission and weight reduction than hex bolts. You can choose from a series tailored to your needs, including "Titanium Alloy Bolts for Racing Machines," "Titanium Alloy Steering Bolts," and "Titanium Alloy Bolts for Sports Cycles." 【Features】 ■ Achieves high torque transmission and weight reduction ■ Reliable fastening supported by nuts and washers ■ Custom-made options available ■ Three series that can be felt through differences in response ■ Diverse color variations *For more details, please refer to the catalog or feel free to contact us.

  • Safety and consumables
  • Interior and exterior construction accessories
  • bolt

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Ultra-lightweight titanium bolt "Titanium alloy bolt for racing machines"

Ultra-lightweight titanium bolt "Titanium alloy bolt for racing machines"

Lightweight titanium alloy bolts for racing cars and bikes! Available in a wide variety of colors.

The "Titanium Alloy Bolts for Racing Machines" from Okitsu Spiral are titanium alloy bolts that contribute to the lightweight design of racing cars and motorcycles. The hexalobular type features a relatively accessible recess and high torque transmission capability. On the other hand, the LH-SS can only be used with specialized tools, making it effective for theft prevention. With a variety of color options available, you can enhance your machine's identity with your own unique coordination. 【Features】 ■ Effective for weight reduction and dressing up ■ Can also be a stylish accent for license plates ■ Available in two types: hexalobular and LH-SS ■ A wide range of color variations *For more details, please refer to the catalog or feel free to contact us.

  • Safety and consumables
  • Interior and exterior construction accessories
  • bolt

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Ultra-lightweight titanium bolt "Titanium alloy bolt for sports cycles"

Ultra-lightweight titanium bolt "Titanium alloy bolt for sports cycles"

Professional riders also give it a thumbs up! Titanium bolts that improve response and braking rigidity.

The "Titanium Alloy Bolts for Sports Cycles" from Okitsu Spiral are ultra-lightweight titanium bolts that are perfect for sports cycles. With robust rigidity, the touch of the brake lever becomes stronger, allowing for powerful braking without unnecessary effort. Not only do they contribute to reducing the weight of the bike, but the unique beautiful coloration of titanium and the diverse color variations enhance the sense of ownership. 【Features】 ■ For sports cycles ■ Effective for weight reduction and dressing up ■ Achieves powerful braking with improved rigidity ■ Diverse color variations *For more details, please refer to the catalog or feel free to contact us.

  • Safety and consumables
  • Interior and exterior construction accessories
  • bolt

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Inconel 600 bolt

Inconel 600 bolt

For aircraft and industrial turbines! Alloy bolts with excellent heat resistance, oxidation resistance, and corrosion resistance.

The "Inconel 600 Bolt" from Okitsu Spiral uses a nickel-based alloy and is a bolt with excellent heat resistance, oxidation resistance, and corrosion resistance. By processing the very difficult-to-machine "Inconel 600" through forging instead of cutting, we pursued production speed. Additionally, by using cold working, we achieved increased strength. It has oxidation resistance up to 1180°C and excellent corrosion resistance against various corrosive substances, making it useful for industrial turbines, vacuum machinery, and aircraft. 【Features】 ■ Excellent heat resistance ■ Oxidation resistance up to 1180°C ■ High corrosion resistance achieved by containing chromium ■ Usable sizes: M3 to M8 *For more details, please refer to the catalog or feel free to contact us.

  • Safety and consumables
  • Interior and exterior construction accessories
  • bolt

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Aluminum screw

Aluminum screw

Not only the prevention of electrolysis corrosion, but also the prevention of destruction due to differences in thermal expansion rates, and the shortening of reuse and disposal processes are expected.

"Aluminum screws" are about one-third lighter than those made of steel or stainless steel, and they can also be colored using anodizing. We offer a lineup of bolts (with hex socket and ultra-low head), nuts, and washers. Please make use of our products in applications that pursue lightweight design and space-saving, such as robots and drones. 【Features】 ■ Lightweight ■ Colorful ■ Recyclable ■ Lineup of bolts, nuts, and washers ■ Anodizing is also available for products in this series *For more details, please refer to the PDF document or feel free to contact us.

  • Joints between components
  • bolt

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Head spinner

Head spinner

Removable with the use of a special tool! Anti-tampering part compatible with both flanged and non-flanged options.

The "Head Spinner" is an anti-tampering component for hex bolts. Due to its sloped sides, it is difficult to grip with pliers or similar tools, and even if it is gripped, it will spin freely, preventing unauthorized removal. You can choose from our anti-tampering screws "TRF Series" for the small screws, and it can accommodate both with and without flanges. 【Features】 ■ Anti-tampering component for hex bolts ■ Improved safety ■ Dedicated tool ■ Compatible with large diameters *For more details, please refer to the PDF document or feel free to contact us.

  • Joints between components
  • bolt

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Locking washer (NORD-LOCK)

Locking washer (NORD-LOCK)

Safety, no special tools required, maintenance and inspection possible! Sizes available from M3 to M42.

The "NORD-LOCK washer" is a loosening prevention washer that secures bolts using tension rather than friction resistance. This system consists of a pair of washers, one with a cam surface and the other with a radial rib surface. The angle of the cam (α) is designed to be larger than the lead angle of the screw (β), making it difficult to easily overcome the cam. This creates a wedging effect between the cam surfaces, preventing loosening of the bolt due to rotation. 【Features】 ■ Prevents loosening caused by intense vibrations and fluctuating loads, ensuring safe fastening. ■ Can be quickly and easily installed and removed with standard tools. *For more details, please refer to the PDF document or feel free to contact us.

  • Joints between components
  • bolt

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Water leak prevention screw (nut)

Water leak prevention screw (nut)

It is possible to shorten the engineering process and secure clearance! We offer sizes from M6 to M30.

When the sealing part comes into contact with water, it is necessary to be cautious of leaks from the seat or threaded parts. The "Water Leak Prevention Screw (SEAL LOCK)" is a nut that integrates sealing material, which gets trapped in the threaded part during tightening, effectively blocking liquids and gases. Additionally, compared to conventional methods, it is expected to reduce the number of components and processes, as well as save space. In relation to this product, Azuma Screw also offers "Water Leak Prevention Washers." 【Features】 - As it is a single component, it allows for shortened processes and securing of clearance. - Can be reused approximately five times. - Prevents not only leaks of liquids and gases but also loosening. *For more details, please refer to the PDF materials or feel free to contact us.

  • Joints between components
  • bolt

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Side hook bolt

Side hook bolt

Colorful O-rings can be attached and engraved on the head! Side hook bolts that enhance safety.

Introducing the "Side Hook Bolt" from the anti-tamper screw "TRF Series" handled by Azumanegi. It is difficult to remove unless using a special tool. It reduces the risk of theft and disassembly of the product, and allows for the attachment of colorful O-rings and engravings on the head. 【Features】 ■ Difficult to remove unless using a special tool ■ Reduces the risk of theft and disassembly of the product ■ Allows for the attachment of colorful O-rings and engravings on the head ■ Material: Stainless steel *For more details, please refer to the PDF document or feel free to contact us.

  • Joints between components
  • bolt

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Hexagonal bolt with hexagonal hole: prevents head damage and cam-out.

Hexagonal bolt with hexagonal hole: prevents head damage and cam-out.

Hex bolt with a hexagonal hole.

The hexalobular hole reduces the risk of damage to tools and screw heads. It is effective in preventing head damage and cam-out during tightening. 【Material】 - Peak - Lenny - PPS 【Shape】 - Hexagonal bolt with hexalobular hole, low head - Hexagonal bolt with hexalobular hole, extra low head In addition, we have a total of 105,000 items including spacers, washers, and bushes. For more details, please check the lineup by requesting a catalog.

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  • bolt

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Peak spacer, screw, washer, bolt

Peak spacer, screw, washer, bolt

Outstanding heat resistance, chemical resistance, and toughness! Hold in your hands the essential materials that support cutting-edge fields.

"PEEK" (Polyether Ether Ketone) supports advanced fields with its exceptional heat resistance, high toughness, and chemical resistance. It is a super engineering plastic that surpasses the performance of engineering plastics, featuring high heat resistance and mechanical properties. 【Features】 - Continuous use temperature of approximately 240 to 250°C, with a melting point of 334°C, ranking it among the highest in thermoplastic resins. - Tough and impact-resistant, comparable to PES (PESU). It has excellent chemical resistance, dissolving in sulfuric acid but resistant to other acids, alkalis, and organic solvents at high temperatures. It is also flame-retardant and produces minimal smoke, certified as "UL94V-0." - During combustion, it does not emit irritating gases, and the smoke produced is very minimal. Additionally, it excels in steam resistance, radiation resistance, and is less prone to degradation from radiation, making it an outstanding material in every aspect. ○ Products Available Spacers, screws, washers, bolts, bushes, nuts Note: RoHS2 compliant products (Variety of products, low cost, short delivery time! Fast delivery & small lot supply * Custom orders accepted from 50 pieces!) Currently, we are offering a free sample set of 30 products with the application for our catalog booklet. Please contact us or apply through the "Catalog Request" on our website.

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PFA Bolt "FABT Series"

PFA Bolt "FABT Series"

Exceptional reliability! You can trust us even in harsh environments! For anything related to bolts, come to Hirosugi Instruments.

**Features** - Heat Resistance PFA material is extremely resistant to high temperatures, stable in high-temperature environments ranging from 250°C to 260°C. - Chemical Resistance PFA has resistance to a wide range of chemicals, providing excellent stability in applications involving chemical handling. - Electrical Insulation With high electrical insulation properties, PFA is suitable for electronic devices and wire insulation materials, as well as for high-frequency and microwave applications. - Non-Stick Properties PFA has a surface that resists adhesion of substances, making it easy to clean. - Flexibility and Wear Resistance PFA material is flexible, resistant to bending and stretching, and has strong wear-resistant characteristics. **Specifications** Material: PFA (Tetrafluoroethylene-Perfluoroalkyl Vinyl Ether Copolymer) Color: Translucent Milky White Heat Resistance Temperature: Continuous 260°C, Non-combustible Sizes: M4/M5/M6/M8 UL Standard: UL94V-0 (Material) Remarks: RoHS2 compliant ~ A wide variety, low cost, and short delivery times! Fast delivery & small lot offerings * Custom orders available from 50 pieces! ~ Currently, we are offering a free sample set of 30 products with requests for our catalog booklet. Please contact us or apply through the "Catalog Request" on our website.

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Multi-functional bolt "TRIBO"

Multi-functional bolt "TRIBO"

"Weight reduction," "high strength," and "prevention of loosening." Three high-performance features consolidated into a single bolt.

"TRIBO" is a brand product with an original concept that combines multiple patents. We have developed a bolt that integrates a special head shape, special materials, and special thread profiles, equipped with three high functionalities. It is the ultimate multifunctional bolt that maintains high strength while achieving weight reduction and does not loosen. By using "TRIBO," there is no doubt that the design freedom will increase, making it possible to realize product development that has never been seen before.

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Yellow Point YOKE Company Adjustable Eye Bolt

Yellow Point YOKE Company Adjustable Eye Bolt

We have a strong performance and price advantage in various countries around the world, and we keep it in stock as a regular inventory item.

Anchor point Keyed eye point Anchor point Keyed eye point

  • Hoist/Crane
  • Bridge Construction
  • Crane and others
  • bolt

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Super Bolt

Super Bolt

With just a torque wrench, anyone can accurately tighten large diameter bolts!

"Super Bolt" is a product that allows you to tighten bolts with a diameter of over 1 meter using only hand tools. Even large-diameter bolts can be securely tightened with a torque wrench. You are freed from cumbersome tools and dangerous, inefficient work, and the working time can be significantly reduced with fewer people. [Features] ■ Anyone can accurately tighten large-diameter bolts using only a torque wrench ■ Eliminates dangerous tasks often associated with large-diameter bolts ■ No worries about seizing or galling during tightening, and no need for reaction force support *For more details, please refer to the related links or feel free to contact us.

  • Subsidiary materials
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YFS(R) Hexagon Socket Bolt

YFS(R) Hexagon Socket Bolt

Guaranteeing high strength of 12.9 even for large diameters of M22 and above! A lineup of over 1200 sizes from M3 to M36.

The "YFS(R) Hexagon Socket Bolt" is a product from one of the largest Taiwanese brands specializing in the manufacturing of high-strength bolts. Thanks to advanced quality control, we can guarantee a strength classification of 12.9 even for larger sizes of M22 and above. We offer a wide range of stock sizes from a minimum of M3 to a maximum of M36, allowing for the procurement of main sizes from a single company. 【Features】 ■ Price competitiveness due to one-stop production with one of the largest production volumes in the world ■ Guarantee of high strength of 12.9 even for diameters of M22 and above ■ A lineup of over 1200 sizes from M3 to M36 *For more details, please refer to the related links or feel free to contact us.

  • Subsidiary materials
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[Case Study] Prevention of Foreign Matter Contamination in Food Manufacturing Lines and Reduction of Inspection Work

[Case Study] Prevention of Foreign Matter Contamination in Food Manufacturing Lines and Reduction of Inspection Work

A case where Nord-Lock washers were proposed to prevent the loosening and falling out of screws.

Here is a case where we proposed the "Nord-Lock Washer" to a food processing manufacturer. In the final stage of packing the manufactured liquid, screws used in the equipment line fell off and were shipped without anyone noticing, resulting in contamination of the product. After our proposal, there have been no signs of screw detachment, and the emergency measure of inspection work has been eliminated, leading to a reduction in the burden on the workers. [Overview of the Issue] ■ Screws used in the equipment line fell off and were shipped while contaminating the product without anyone noticing. ■ The issue was discovered by chance during an inspection at a retail store, leading to a halt in production and a recall of all products. ■ Since then, all areas with potential for detachment have been addressed with emergency measures. ■ The inspection work before starting operations has become an excessive burden, so we want to implement a fundamental solution. *For more details, please refer to the related links or feel free to contact us.

  • Other services and technologies
  • bolt

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[Case Study] Reduction of Maintenance Frequency and Improvement of Quality through Anti-Loosening Measures

[Case Study] Reduction of Maintenance Frequency and Improvement of Quality through Anti-Loosening Measures

A case where Nord-Lock washers contributed to a reduction in maintenance frequency.

Here is a case where we proposed "Nord-Lock washers" to an industrial machinery manufacturer. They were using hex socket bolts (CAP) in their binding equipment, but there was an issue with loosening occurring after delivery. After our proposal, the reports of loosening troubles, which had been occurring almost every month, dropped to zero. [Overview of the Issue] ■ Hex socket bolts (CAP) are used in the binding equipment, but loosening occurs after delivery. ■ There were 2 to 3 reports per month, and maintenance was performed at the customer site each time. *For more details, please refer to the related links or feel free to contact us.

  • Other services and technologies
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Stainless bolt

Stainless bolt

Excellent design, corrosion resistance, and durability! Stainless steel bolts that can be used widely.

Stainless steel is excellent in design, corrosion resistance, and durability, and has been widely used in various fields for a long time. At Teikoku Seibou, we manufacture "stainless bolts" based on years of accumulated technology and achievements. The range of rollable diameters is broad, from small to large sizes, catering to various needs (with a maximum neck length of 1,000mm possible). All products are made to order. 【Features】 ■ All products are made to order ■ Manufactured under strict quality control and extensive experience in all processes, including hot forging, solution treatment, NC cutting, thread rolling, and surface treatment ■ The range of rollable diameters is broad, from small to large sizes (with a maximum neck length of 1,000mm possible) *For more details, please refer to the PDF document or feel free to contact us.

  • Joining and fastening materials
  • bolt

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Railway-related products: dog spikes and rail screws.

Railway-related products: dog spikes and rail screws.

JIS mark display system certified products! Introducing the dog nails and rail screws handled by our company.

At Teikoku Seibou, a leading company in rail fastening component manufacturing, we handle "dog spikes and rail screws." "Dog spikes" are used for fastening rails to wooden and synthetic sleepers. In addition to the commonly used standard dog spike "Dog Spike (Standard) JIS-E1108," we offer dog spikes (round head) and dog spikes (square head) in our lineup. "Rail screws" are used for fixing rails and fastening tie plates, and we provide types A, B, and C according to their applications. 【Features of Dog Spike (Standard)】 ■ Currently widely used standard dog spike ■ Available for general use and N rails (the difference is the angle under the head of the dog spike) ■ Certified product under the JIS mark display system (JIS E1108) *For more details, please refer to the PDF materials or feel free to contact us.

  • Road construction
  • bolt

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Hexagon socket bolt (cap)

Hexagon socket bolt (cap)

Improved reliability and workability due to prevention of loosening with high tightening force.

Hexagon socket bolts (caps) are generally used without being paired with nuts, so referring to them as screws is more accurate. However, since the name hexagon socket bolt has become widespread, they are also called cap bolts. The applicable strength grades are 8.8, 10.9, and 12.9. They are tightened with a hexagon rod wrench (with a maximum neck length of 1,000 mm). *In urgent or emergency cases, please direct any technical inquiries through our website.

  • Joints between components
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Special items, irregular items, wit screws

Special items, irregular items, wit screws

Please feel free to consult us about standard bolts as well as irregular items and irregular bolts.

Special products, irregular products, and wit screws are equipped to respond to the "next needs" by leveraging the characteristics of the hot and cold forging technologies cultivated up to today, allowing us to accommodate all types of orders. In addition to standard bolts, we welcome inquiries and estimates for irregular products and irregular bolts, regardless of the quantity, such as "Can you make something like this?" or "Can it be produced more economically?" *For urgent or emergency cases, please contact us with technical questions through our website.

  • Subsidiary materials
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Hexagon bolt (4.6, 8.8, 10.9)

Hexagon bolt (4.6, 8.8, 10.9)

Two types are available depending on the size of the two-sided width! Stable torque management during tightening is also possible.

We would like to introduce our "Hex Bolts," which are heat-treated to high strength and possess stable quality. Hex head bolts come in two types based on the width across the flats. The applicable strength classifications are 4.6, 8.8, and 10.9. At Teikoku Seibyo, we can manufacture bolts in various sizes according to user needs. Additionally, since October 1993, our company has been producing high-strength hex bolts with a diameter of 10.9 (JIS standard) using advanced heat treatment technology that leverages hot forging techniques (with a maximum shank length of 1,000 mm). 【Features】 ■ Hex bolts (8.8, 10.9) are made from chromium-molybdenum steel (SCM435, 440) and nickel-chromium-molybdenum steel (SNCM439). ■ They are heat-treated to high strength using state-of-the-art heat treatment equipment, ensuring stable quality (8.8, 10.9). ■ When combined with nuts, they allow for stable torque management during tightening. ■ JIS mark certification (JIS B1180). *For more details, please refer to the PDF document or feel free to contact us.

  • Joining and fastening materials
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"High-strength hex bolt 8.8・10.9" JIS B 1180

"High-strength hex bolt 8.8・10.9" JIS B 1180

Uses alloy steel and low-carbon boron steel for mechanical structures. Complies with JIS B 1051. Stable quality through in-house production.

Introducing the "High-Strength Hex Bolt" from Teikoku Seibou, a manufacturer of fastening components related to large machinery and railways. For strength grades "8.8" and "10.9," we use mechanical structural alloy steel (SCM435) and low-carbon boron steel as materials. We offer a lineup of 9 sizes: M16, M20, M22, M24, M27, M30, M33, M36, and M39. 【Features】 ■ High strength is achieved through heat treatment, ensuring stable quality. ■ When combined with nuts, stable torque management is possible during tightening. *For more details, please refer to the materials. Feel free to contact us with any inquiries.

  • Joints between components
  • Work tools
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Empire Fastener Co., Ltd. "21st Century Product Catalog"

Empire Fastener Co., Ltd. "21st Century Product Catalog"

I want to fit the following needs: "21st Century Product Catalog"

At Teikoku Seibou Co., Ltd., we have been dedicated to each product with reliable technology and a trustworthy system. To further respond to the "next needs," we have developed a system that leverages the characteristics of both hot and cold forging technologies cultivated up to today, allowing us to accommodate orders for standard bolts as well as custom shapes and irregular bolts, regardless of the lot size. The "21st Century Product Catalog" includes not only "company history," "JIS approved items," "production steel materials," and "main production and inspection equipment," but also a wide range of products such as "10.9 high-strength bolts," "10.9 hex socket bolts," "dog nails and stop nails," "rail screws," "rail fastening bolts," "gauge adjustment fittings," and "joint plate bolts." *For urgent or emergency inquiries, or for technical questions, please contact us directly through our website.

  • Steel
  • Secondary steel products
  • Work tools
  • bolt

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Imperial Fastener Co., Ltd. "Company Profile"

Imperial Fastener Co., Ltd. "Company Profile"

Introduction of the business and product lineup!

At Teikoku Seibou Co., Ltd., we are dedicated to developing automated equipment for self-tapping screws and continuously striving to improve our technology, producing better products at lower costs, and receiving patronage from various sectors and fields. We have been manufacturing bolts, screws, and nails, which are essential for social infrastructure such as railways, construction, civil engineering, and shipbuilding, for nearly a century. With the motto "We want to meet the next needs," our entire company is united in contributing to society and advancing into the future as "Teikoku Seibou, an old yet new company." In our "Business Introduction," we sincerely respond to user needs with "technical capabilities" backed by solid technology and a robust system, high productivity utilizing years of knowledge and experience in "production systems," and "quality control" that provides peace of mind through rigorous inspections. Additionally, in the "Product Lineup Introduction," we feature a wide range of products including "dog nails," "gauge blocks," "long head studs," "SS bolts," "epoxy powder coating," "10.9 and 8.8 high-strength bolts," and "stainless steel hex socket bolts," among many others. *For urgent or emergency matters, or technical inquiries, please contact us directly through our website.

  • Joints between components
  • Work tools
  • Road construction
  • bolt

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Railway-related products: dog spikes, trapezoidal screws, and other applications.

Railway-related products: dog spikes, trapezoidal screws, and other applications.

Would you like to use it for decoration? Please also make use of it as a souvenir.

The 'Dog Nail / Trapezoidal Screw' is shaped remarkably like a dog's head and can be widely used for various purposes. Please get creative with its use as an exterior decoration for buildings or as a hook for hanging items. If you would like to order it as a commemorative item, we can also include text or dates. 【Features】 ■ Can be used as an exterior decoration for buildings or as a hook for hanging items ■ Text and date engraving is also possible *For more details, please refer to the PDF document or feel free to contact us.

  • Synthetic Resin Plywood
  • Flag hardware and decorative hardware
  • Road construction
  • bolt

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Construction-related products: hot-dip galvanized high-strength hex bolts

Construction-related products: hot-dip galvanized high-strength hex bolts

We have undergone examination based on the Building Standards Act and obtained general certification from the Minister of Land, Infrastructure, Transport and Tourism.

The high-strength hex bolts with hot-dip galvanized coating from Teikoku Seibou Co., Ltd. have undergone examination based on the Building Standards Act regarding corrosion resistance, mechanical properties, tightening functionality, delayed fracture characteristics, and construction performance, and have obtained general certification from the Minister of Land, Infrastructure, Transport and Tourism. The coating weight of the bolts, nuts, and washers is 550g/m² or more. Furthermore, the coating weight of the components is managed under the same standards, ensuring maintenance-free corrosion resistance over the long term. In the zinc plating process, acid washing is avoided as much as possible to prevent hydrogen intrusion, eliminating concerns about delayed fracture. The nuts are treated with a special lubrication process, guaranteeing stable axial force during tightening construction using the nut rotation angle method. *For urgent or emergency cases, or for technical inquiries, please contact us directly through our website.*

  • Safety and consumables
  • Rock drills, demolition machines, and excavators
  • bolt

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