bolt Product List and Ranking from 172 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

bolt Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. 構造工学研究所 Tokyo//Building materials, supplies and fixtures manufacturers
  2. ヨシモトポール Tokyo//Building materials, supplies and fixtures manufacturers
  3. 岡部 Tokyo//Building materials, supplies and fixtures manufacturers
  4. 4 八州電工 Osaka//Building materials, supplies and fixtures manufacturers
  5. 5 ケー・エフ・シー Osaka//Building materials, supplies and fixtures manufacturers
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bolt Product ranking

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. Post-construction anchor offset measures: "Parent-child filler" 構造工学研究所
  2. Pole adapter for electrical material joint parts of different diameters and shapes. 八州電工
  3. Disaster Prevention Administrative Wireless Column "Ace Mast" ヨシモトポール
  4. 4 Construction hardware products Auto Flash Bolt (Automatic French Drop Bolt) 大鳥機工
  5. 5 AS345 Bolt/AS345 Plated Bolt Type N 岡部

bolt Product List

211～225 item / All 718 items

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T-LSB (Tornaji Lag Screw Bolt)

T-LSB (Tornaji Lag Screw Bolt)

Fastening components used for various joints utilizing wooden materials. For all types of fastening in wood-steel hybrid structures and RC members, etc.

T-LSB (T-Nut Lag Screw Bolt) is a product developed to simplify construction and reduce costs as a component for fastening steel plates and wood materials such as CLT. It demonstrates significant effectiveness in the construction of composite structures involving wood-to-wood, wood-to-steel, and wood-to-steel-to-RC components. 【Features】 - There is no hexagonal head like traditional LSBs, so counterboring of the wood is unnecessary. - Since there is no counterboring, the epoxy resin filling work is not required. - Chiseling work, which is done when using fillers, is not necessary. - It can be easily screwed in using a dedicated attachment bolt. - Costs can be reduced by eliminating counterboring processing fees, filler costs, and chiseling work. - Simplifying construction can shorten the construction period. - Management is conducted for each manufacturing lot, and inspection reports are provided. ◎ For more details, please refer to the PDF document or feel free to contact us.

  • Joints between components
  • Other flooring materials

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Okai Iron Works Co., Ltd. Business Introduction

Okai Iron Works Co., Ltd. Business Introduction

We provide products that achieve high precision, short delivery times, and reasonable costs by utilizing advanced cold forging technology.

Okai Iron Works Co., Ltd. is a company engaged in the manufacturing and sales of various fasteners and precision parts. Leveraging our advanced mold design capabilities and unique cold forging technology, we continuously respond to emerging challenges with an all-around approach, providing optimal products that achieve high precision, short delivery times, and reasonable costs. Our company offers a wide range of products in various sizes and materials, primarily focusing on automotive parts. We also accommodate complex shapes and special items with our unique mold technology. For all your parts and fastener needs, please trust us. 【Business Description】 ■ Manufacturing and sales of various fasteners and precision parts *For more details, please refer to our catalog or feel free to contact us.

  • Other fixtures and fittings

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Hexagon socket bolt

Hexagon socket bolt

The component grade is A as specified by JIS B1021! Hexagon socket bolts with thorough quality control.

The "Hexagon Socket Bolt" is a product of Okai Iron Works Co., Ltd., which manufactures and sells various fasteners and precision parts. Our company anticipates needs and proposes optimal products. 【Features】 ■ A thorough inspection system that meets JIS standards ■ Comprehensive quality control and rational product management ■ Dedicated automatic warehouses for molds and products ■ Quick response to sudden orders with "immediate production and shipping" ■ High productivity through the introduction of advanced equipment *For more details, please refer to the catalog or feel free to contact us.

  • others

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Hexagon socket button bolt

Hexagon socket button bolt

The component grade is A as specified by JIS B1021! Hexagon socket button bolts with thorough quality control.

The "Hexagon Socket Button Bolt" is a product of Okai Iron Works Co., Ltd., which manufactures and sells various fasteners and precision parts. Our company detects needs and proposes optimal products. 【Features】 ■ A thorough inspection system that meets JIS standards ■ Rigorous quality control and rational product management ■ Dedicated automatic warehouses for molds and products ■ Quick response to sudden orders with "immediate production and immediate shipping" ■ High productivity through the introduction of advanced equipment *For more details, please refer to the catalog or feel free to contact us.

  • others

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Hexagon socket bolt with washer assembly

Hexagon socket bolt with washer assembly

A wide range of products in the lineup! Hexagon socket bolts with built-in washers.

The "Washer-Integrated Hexagon Socket Bolt" is a product of Okai Iron Works Co., Ltd., which manufactures and sells various fasteners and precision parts. We offer a wide range of products, including the "V type," which incorporates a wave washer to enhance spring action, and the "S type," which is expected to provide strong tightening and anti-loosening effects. 【Features】 ■ A thorough inspection system that meets JIS standards ■ Rigorous quality control and rational product management ■ Dedicated automatic warehouses for molds and products ■ Quick response to sudden orders with "immediate production and shipping" ■ High productivity achieved through the introduction of advanced equipment *For more details, please refer to the catalog or feel free to contact us.

  • others

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Concrete pillar

Concrete pillar

Cold-resistant concrete columns with excellent durability against frost damage! Three types available!

We offer three types of "concrete columns." They are designed for cold climates and have excellent durability against freeze damage. 【Lineup】 ■ Replacement signal pole ■ Jack pole ■ Talkback pole *For more details, please refer to the PDF document or feel free to contact us.

  • Concrete construction

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Entrance pole painting

Entrance pole painting

Change the color of the entrance pole for a unique lighting effect! We offer options like hammer tone, which creates a bumpy pattern while maintaining a smooth painted surface!

Changing the paint of the entrance pole will create a unique lighting effect. We offer various types of paint, such as hammer tone, which has a smooth surface but features a bumpy pattern. Please feel free to contact us when you need assistance. 【Services Offered】 ■ Hammer tone and other types of paint with a smooth surface but bumpy patterns. *For more details, please refer to the PDF document or feel free to contact us.

  • Plastering and painting work

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Transportable in segments! A separate pole that reduces logistics costs.

Transportable in segments! A separate pole that reduces logistics costs.

[Attention those troubled by transportation costs!] A pole that can be divided into two parts and can be transported manually. It can be delivered even to sites where a 4-ton truck cannot enter.

The "Separate Pole," which can be divided into upper and lower sections for transportation, solves your concerns about shipping costs. With a standard pole, the length may require a 4-ton truck for transport. However, if a 4-ton truck cannot access the construction site, a crane may be necessary. With the "Separate Pole," you can transport it compactly by dividing it into upper and lower sections, and manual transportation is also possible if needed. It can also be shipped via mixed cargo, helping to reduce shipping costs. 【Features】 ■ Possible to ship via mixed cargo ■ Can be transported manually without a crane *For more details, please refer to the PDF document or feel free to contact us.

  • セパレートポール2.JPG
  • セパレートポール3.JPG
  • Collection and transportation

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Nortlock Washer with Railway Vehicle Adoption Examples [NETIS Registered]

Nortlock Washer with Railway Vehicle Adoption Examples [NETIS Registered]

Numerous achievements in all industries! Wedge lock products that physically prevent bolt loosening.

The "Nortlock Washer" employs a "wedge lock mechanism" and is a loosening prevention product that does not rely on friction. It protects bolt connections from loosening even in the most severe vibration environments, ensuring solid safety. It is used in various bolt connections in the railway industry worldwide, including bogies, couplers, brake systems, equipment, track maintenance, and sleepers. Its high quality and safety have been recognized, and it has been registered in the database "NETIS" (New Technology Information Sharing System) operated by the Ministry of Land, Infrastructure, Transport and Tourism. (Registration number: KKK-190002-A) 【Features】 ■ Loosening prevention that does not rely on friction ■ Wedge lock mechanism ■ Many approvals and certifications, primarily in Europe ■ Sizes (Steel): M3 to M130 ■ Sizes (SUS): M3 to 80 *For more details, please refer to the PDF document or feel free to contact us.

  • Work tools
  • others

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[Maintenance Improvement] Significantly improved work time and reliability regarding bolt fastening!

[Maintenance Improvement] Significantly improved work time and reliability regarding bolt fastening!

In most cases, it is possible to significantly improve when bolts "loosen," "break," or when "working time" and "workload" are involved.

In various plant maintenance situations, the removal and re-tightening of bolts is rarely the "goal." Nevertheless, the reality is that addressing issues such as breakage and loosening, as well as the removal and re-tightening process itself, requires a significant amount of time and cost. ■ Events where improvements can be expected (examples) - Loosening of bolts and nuts - Fatigue failure of bolts or breakage for reasons that are not well understood - Reduction of time for bolt removal/re-tightening - A reliable method is needed for fastening parts that require high precision in axial force - Measures to eliminate the need for cranes in the removal/re-tightening of large-diameter bolts - Significant reduction in work time for the removal/re-tightening of large-diameter bolts - Significant reduction in physical strain from the removal/re-tightening of large-diameter bolts - Eradication of galling and seizing - Play in movable parts (due to wear in pin holes) - Elimination of the need for complete part replacement due to wear in movable parts - Elimination of costly service requests due to wear in movable parts - Elimination of the need for bushing replacement due to wear in movable parts Most of the above events can be improved in nearly all cases. For more details, please download the catalog or contact us.

  • Safety and consumables
  • Work tools
  • Bridge Materials

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Nord-Lock SC Washer

Nord-Lock SC Washer

Washers compatible with high-strength bolts for construction used in steel structures and bridges in Europe!

This product is a Nord-Lock washer specifically designed for high-strength bolts used in construction, easily replaceable with flat washers as specified in EN 14399-6. It is widely used in structural steelwork and bridge construction in many countries where European standards apply, physically preventing bolt loosening due to vibrations from vehicle traffic and other sources. The chamfering treatment on the inner diameter is applied to both sides of the two-piece set, eliminating the risk of incorrect assembly orientation. 【Features】 ■ Physically prevents rotational loosening in steel structures ■ Product design and CE marking specialized for HV or HR sets ■ Allows for a highly reliable fastening design even with short fastening lengths ■ Provides the same effect regardless of the skill or experience of the operator ■ Usable in a wide temperature range from -50°C to 150°C *For more details, please refer to the PDF document or feel free to contact us.

  • others

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[Nortlock Product Adoption Case] Tokai Railway Company (JR Tokai)

[Nortlock Product Adoption Case] Tokai Railway Company (JR Tokai)

No more lock nuts that have been used hundreds and thousands of times! An example that also contributed to vehicle weight reduction.

We would like to introduce a case study of Tokai Railway Company (JR Tokai), which has adopted Nord-Lock products. The company has relied on skilled workers who meticulously maintain and inspect their systems day and night to ensure safety, which required a tremendous amount of effort and time. To address this, they adopted our "Nord-Lock Washer." This product has a mechanism that prevents loosening and rotation, even in extremely harsh vibration environments, significantly advancing this long-standing challenge. 【Case Overview】 ■ Customer: Tokai Railway Company (JR Tokai) ■ Product: Shinkansen N700 Series Vehicles ■ Adopted Product: Nord-Lock Washer *For more details, please refer to the PDF document or feel free to contact us.

  • others

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[Nortlock Product Adoption Case] Coatec Inc.

[Nortlock Product Adoption Case] Coatec Inc.

To respond to the customer's wishes! A case where the same fastening precision can be easily achieved regardless of who performs the work.

We would like to introduce a case study of Coretech Co., Ltd., which adopted Nord-Lock products. The company was using double nuts to secure tie rods that are constantly exposed to the impact and load of presses, but this method led to variations in effectiveness depending on the operator. Moreover, when it comes to larger sizes like the tie rods of a press machine, the task of tightening the nuts itself was very challenging and time-consuming. Therefore, they adopted our "Superbolt." As a result, concerns about maintenance after product delivery were eliminated, providing significant peace of mind psychologically. [Case Overview] ■ Customer: Coretech Co., Ltd. ■ Adopted Product: Superbolt *For more details, please refer to the PDF document or feel free to contact us.

  • others

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[Complimentary Guidebook Available] Thorough explanation of various bolt loosening prevention methods!

[Complimentary Guidebook Available] Thorough explanation of various bolt loosening prevention methods!

This booklet explains the causes of bolt loosening and serves as a guide to understanding proper fastening methods.

The publication includes challenges of bolt fastening, factors causing axial force loss, methods to prevent loosening of bolt fastenings, and guidance for selecting loosening prevention methods. It compares and evaluates general methods for preventing loosening of bolt fastenings over the service life of assemblies, allowing you to choose appropriate fastening methods to solve issues related to bolt fastening. 【Contents (excerpt)】 ■ Why do bolts loosen? ■ Challenges of bolt fastening ■ Factors causing axial force loss ■ Guidance for selecting loosening prevention methods ■ Loosening prevention methods for bolts by product ■ Corrosion countermeasures for metals >>>NEWS<<< Nord-Lock Japan will exhibit at the "Plant Maintenance Show" held from July 24 to 26. If you plan to attend or are interested, please stop by our booth (M4-176).

  • Road signs and road accessories

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Flanged Bolt and Nut

Flanged Bolt and Nut

Widely active as parts such as electrical materials, piping materials, and hardware! Steel components.

"Flanged bolts and nuts" are steel components coated with a corrosion-resistant zinc plating. Hex bolts and nuts are also available in our lineup. Please feel free to use them with flexible ideas as parts for electrical materials, piping materials, and hardware. *For more details, please refer to the PDF document or feel free to contact us.

  • Steel

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