Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
1～30 item / All 34 items
Resin screw, compliant with EU RoHS
● Pan Head Screw (with Cross Slot) ● Set Pan Head Screw ● Flat Head Screw (with Cross Slot) ● Hex Bolt ● Set Hex Bolt ● Hex Socket Bolt ● Hex Socket Set Screw ● Hex Nut ● Push Rivet
Heat-resistant and chemical-resistant, made of PPS! Hirose Instruments!
PPS (polyphenylene sulfide) is a crystalline super engineering plastic. 【Features】 - Excellent heat resistance, allowing for long-term use in high-temperature environments. - Superior chemical resistance, with no oils or solvents that can dissolve PPS below 200°C. - Excellent mechanical properties, electrical properties, and dimensional stability, with products certified to UL standard UL94V-0. ■Specifications Material: PPS Color: Light brown Applicable sizes: M2/2.6/3/M4/5/M6/M8/M10/M12 Remarks: RoHS2 compliant product ~ A variety of products, low cost, and short delivery times! Speedy delivery and small lot offerings * Custom products can be made starting from 50 pieces! ~ * For details, please contact us or download the catalog. Currently, we are offering a free sample set of 30 products with the application for the catalog booklet version. Please apply through our website's "Catalog Request" or contact us.
Please use it in areas that require insulation, corrosion resistance, and non-magnetic properties.
【Features】 1. It is a lightweight product with high mechanical strength. 2. It excels in electrical insulation, thermal insulation, and non-magnetic properties. 3. It has excellent chemical resistance to acids, alkalis, and organic solvents, as well as weather resistance to UV rays, water absorption, and weathering. 4. It can be used over a wide temperature range from extremely low temperatures to high temperatures. 5. It has a small thermal expansion coefficient and excellent dimensional stability. 6. By applying a fluororesin coating to the surface, corrosion resistance is improved, and tightening operations become smoother. 7. Materials, grades, and shapes can be selected according to the application. *For more details, please refer to the PDF document or feel free to contact us.
Supports many standards including MIL, AMS, MS, NAS, AN, AS, and NASM!
Supports various standards including MIL, AMS, MS, NAS, AN, AS, NASM, and many more!!! Yura Sansho Co., Ltd., a supplier of industrial fasteners, will propose solutions to all fastening-related issues, including high strength, heat resistance, corrosion resistance, and loosening, as a technical trading company. We provide optimal products tailored to customer needs, from short delivery times and small lots to long-term and large-scale demands. For more details, please contact us or refer to our catalog.
Hex Bolt (Full Thread / Half Thread) Quantity Table (Unichrome / Stainless) & Hex Nut
Keimoto Manufacturing specializes in a wide range of materials, hardware, tools, and site-related consumables, primarily focusing on construction screws. 【Features】 ○ High quality and low prices. Prices become even more affordable with bulk orders. ○ A wide variety of products and ample stock. Fast delivery times. Custom orders are also accommodated. ○ Nationwide shipping is available. We also offer options for small packaging. ● For more details, please contact us or download the catalog (digest version).
Standard equipped with earthquake-resistant mats! Can be used as foot bolts by incorporating commercially available bolts.
"S-HAS/HBS/HCS" is a seismic-type foot bolt nut. This product can be used as a foot bolt by incorporating commercially available bolts. It comes standard with a shock mat to reduce shaking. 【Features】 ■ Material: Stainless Steel (SUS304) ■ Finish: Glossy barrel polishing *For more details, please refer to the PDF document or feel free to contact us.
The weight is about two-thirds that of iron! Titanium bag nuts (cap nuts) that are resistant to salt damage, rust, chemicals, and heat.
The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap pressed onto a nut. Since its release, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. From this bag nut series, we offer lightweight and highly corrosion-resistant titanium cap nuts. 【Features】 ○ Lightweight (titanium is about two-thirds the weight of iron and half the weight of copper) ○ Excellent corrosion resistance, chemical resistance, and heat resistance ○ Smart design with excellent decorative qualities ○ Standardized and suitable for mass production 【Standard Sizes】Hexagonal type: Compatible with sizes M6 to M12. *Some are made to order. For more details, please contact us or download the catalog.
The bag nut is the original of JIS Type 3! We offer a variety of product series including iron, stainless steel, titanium, and weld (welding) nuts.
The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap that is press-formed onto a nut. Since its release, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. You can find it in places close to you, so please remember Daiichi Kogyo when you see it. 【Features】 ○ The head is hollow, making it lightweight and allowing male threads to be inserted to the tip of the cap, preventing exposure of the threaded part. ○ The design is smart and has excellent decorative qualities. ○ It is standardized and can be mass-produced. For more details, please contact us or download the catalog.
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.
We also offer products made of Dobu plating! A lineup including "long nuts" and "sack nuts."
We would like to introduce the "Bolts/Nuts" of duct auxiliary materials that we handle. We offer a lineup that includes "long nuts" and "sleeve nuts," which are also available in hot-dip galvanized versions. Additionally, we have "Tellers," which are used as reinforcements for ducts by passing a fully threaded rod through the center hole and securing it with a nut. 【Lineup (partial)】 ■ Bolts ■ Nuts ■ Long Nuts ■ Windowed Long Nuts ■ Sleeve Nuts *For more details, please refer to the PDF document or feel free to contact us.
![[Short delivery time and custom orders] Large bolts and nuts for petroleum refining and petrochemicals.](https://image.www.ipros.com/public/product/image/a1c/2000480266/IPROS01393685371864198078.jpeg?w=280&h=280)
As a specialized manufacturer of high-temperature and high-pressure bolt and nut products, we have received high praise and achievements from our customers.
Since our establishment, we have been producing high-quality bolts and nuts with excellent heat resistance, corrosion resistance, and pressure resistance for equipment such as general piping, heat exchangers, and pressure vessels. Our products are used not only domestically but also in various plants around the world, significantly contributing to the development of the equipment industry. We also accommodate special sizes, materials, and specifications for stud bolts up to M130 (4.5 inches)! *Please feel free to contact us if you have any requests.
We offer plastic screws/bolts/nuts made from various materials.
Plastic screws have high electrical resistance and excellent insulation properties. By using plastic screws with superior insulation, it is possible to prevent short circuits. ● Heat Resistance: Materials such as PPS (polyphenylene sulfide) and RENY (polyphenylene sulfide-based resin) have a heat resistance temperature of over 200°C, providing stable performance even under harsh temperature conditions. ● Insulation: Plastic screws have low thermal conductivity and excellent insulation properties. They can prevent localized condensation caused by thermal bridges. Efficient thermal management can be achieved in the design of equipment and devices where temperature control is crucial. ● Lightweight: Plastic screws are very lightweight, making them suitable for products and equipment where weight reduction is necessary. ● Corrosion Resistance: Plastic screws do not rust or corrode, offering excellent resistance to moisture and chemicals. ● Electrical Insulation: Plastic screws have high electrical resistance and excellent insulation properties. By using plastic screws with superior insulation, it is possible to prevent short circuits.
It's a lightweight yet incredibly strong material! How about using it as an alternative to metal?
RENY is a crystalline engineering plastic based on polyamide MXD6, reinforced with 50% glass fiber, which has the highest strength and elastic modulus among engineering plastics and excellent oil resistance. It possesses the greatest strength and rigidity among engineering plastics. With its superior strength, it contributes to weight reduction as a metal alternative. Features: ● Excellent strength and elastic modulus over a wide temperature range ● Low moisture absorption, providing excellent dimensional stability and strength ● Low molding shrinkage and low warpage ● Excellent chemical resistance to oil-based and organic solvents ● Low coefficient of linear expansion comparable to metal alloys ● Excellent appearance (Variety of products, low cost, short delivery time! Fast delivery & small lot supply * Custom products can be made from 50 pieces!) *For details, please contact us or download the catalog. Currently, we are offering a free set of 30 product samples with the application for the catalog booklet version. Please apply through inquiries or the "Catalog Request" on our website.
Introducing bolts and nuts for rail joint plates used in railways!
At Teikoku Seibou, which has been manufacturing bolts, screws, and nails essential for social infrastructure such as railways, construction, civil engineering, shipbuilding, and aircraft for about 100 years, we handle "joint plate bolts and nuts" used in railway applications. Our company manufactures ordinary steel joint plate bolts and heat-treated joint plate bolts based on JIS E1107, Appendix 1 (regulations) for Whitworth thread joint plate bolts and nuts. 【Types and Uses of Bolts】 ■ Type A - For 30kg (A30) rails: Ordinary joint plates - For 37kg (A37) rails: Ordinary joint plates - For 50kg (A50) rails: Ordinary joint plates ■ Type B - For 30kg (B30) rails: Heat-treated joint plates - For 37kg (B37) rails: Heat-treated joint plates - For 40kgN (B40N) rails: Ordinary joint plates / Heat-treated joint plates - For 50kg (B50) rails: Heat-treated joint plates - For 50kgN (B50N) rails: Ordinary joint plates / Heat-treated joint plates *For more details, please refer to the PDF document or feel free to contact us.
Many successful applications in Shinkansen! Higher strength than cutting processing, and capable of mass production as well as custom orders! We also offer prototyping, so please feel free to consult with us.
♦P.C. Tie Rod Trapezoidal Screw Bolt♦ The "trapezoidal screw/bolt" for concrete ties is manufactured using the "hot-rolled rolling method," which offers superior strength compared to machining. It has already been successfully used in numerous cases for the Shinkansen and can also be used for securing parts such as the hanging sections of concrete walls in civil engineering and underground areas. ★Please feel free to consult us regarding other applications or prototypes. We also design "male threads." 【Features of the Hot-Rolled Rolling Method】 - Maintains the fiber structure of the steel, providing excellent strength - High precision with no eccentricity - Suitable for mass production - Custom products for special shapes/trapezoidal screws are also available ♦Connection Plate Bolt and Nut♦ Standard steel connection plate bolts and heat-treated connection plate bolts. 【Features】 - Heat-treated connection plate bolts are produced in three grades: 5.6, 8.8, and 10.9 - Obtained JIS display permission (certification) ◆Prototype Forged Parts◆ If you provide us with drawings, we can design and prototype molds regardless of quantity! This allows for pre-processing by forging, not only for bolts but also for complex shapes or when you want to reduce excess material in lathe machining. *For more details, please contact us or refer to the catalog.*
Bolts and nuts for rail joint plates used in railways.
"Joint plate bolts and nuts" refer to ordinary steel joint plate bolts and heat-treated joint plate bolts. Our company manufactures them based on JIS E1107 for Whit threads in joint plate bolts and nuts. JIS E1107, E1113, and E1114 have been integrated and announced as the new JIS E1107. 【Features】 ○ Heat-treated joint plate bolts are produced in three types: 5.6, 8.8, and 10.9 ○ Obtained JIS display permission (certification) *For urgent or emergency inquiries, please contact us through our website for technical questions.
High heat resistance! High corrosion resistance! Alloy screw products!
■◇Enhanced Rare Metal Products◇■ Stock Materials - ALLOY600/601/625 (Equivalent to Inconel) - ALLOY22/276/X-750 (Equivalent to Hastelloy) Stock Products - Hex socket bolts - Hex bolts - Hex nuts - Flat washers - Spring washers *Inconel is a registered trademark of Special Metal Corporation. *Hastelloy is a registered trademark of Haynes International, Inc.
HLN (Hard Lock Nut) / HLB (Hard Lock Bearing Nut)
The Hard Lock® nut, born in Japan and growing worldwide, possesses a strong anti-loosening effect, excellent workability, and ease of attachment and detachment that other lock nuts do not have. Could the principle of a wedge be applied to anti-loosening? This theme was tackled, and after repeated trial and error, the Hard Lock nut was completed.
The products created by KAGOSHIMA KINZOKU continue to evolve constantly.
This is a notice from Kagoshima Metal Co., Ltd. regarding "fastening parts such as bolts and nuts."
You can use commercially available bolts and incorporate them as foot bolts!
Introducing the Foot Bolt Nut 'S-NM/NA/NB/NC'. This product can be used as a foot bolt by incorporating commercially available bolts. It can be used in machines and other applications. 【Features】 ■ Material - S-NM-RW, NA-RW, NB-RW, NC-RW: Steel (SPCC) - S-NA-S, NB-S, NC-S: Stainless Steel (SUS304) ■ Finish - S-NM-RW, NA-RW, NB-RW, NC-RW: Glossy Chromate - S-NA-S, NB-S, NC-S: Glossy Barrel Polished *For more details, please refer to the PDF document or feel free to contact us.
It is a bag nut that can be tightened with just one driver, even in narrow spaces!
The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap formed by pressing onto a nut. Since its launch, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. From this bag nut series, we offer the "SS-UFO Cap Nut," which can be tightened with a screwdriver. The "SS-UFO Cap Nut" is a special bag nut with recesses (such as a cross hole) in the cap part. Even in tight spaces where a wrench cannot be used, this "SS-UFO Cap Nut" can be tightened with just one screwdriver. Please consider it in cases where hex nuts are difficult to tighten due to design constraints, or when you want to improve workability in small and narrow spaces. There are two head shapes available: pan (cross hole) and truss (cross hole). For more details, please contact us or download the catalog.
Successfully eliminated loosening permanently with safety bolts and nuts! Cleared JQA high-speed vibration loosening test!
The "Yurumanzo (W-V-LOCK)" is a safety bolt and nut that successfully eliminates loosening permanently by adopting a ratchet mechanism between the bolt, nut, and washer, and by incorporating protrusions on the bottom surface of the washer that bite into the workpiece. All five units tested in the vibration loosening comparison test conducted by the Japan Quality Assurance Organization passed without any loosening for over 17 minutes. 【Features】 ■ The bolt and washer are connected using a ratchet mechanism, with several protrusions on one side of the seating surface. ■ The protrusions bite into the clamped object in a wedge shape, preventing the washer from rotating and providing a loosening prevention effect for the entire screw. ■ No loosening occurs even under strong vibrations or long-term use. ■ A high safety and durability loosening prevention mechanism for screws. ■ Patent obtained. *For more details, please request materials or view the PDF data from the download section.
Successfully eliminated loosening permanently with safety bolts and nuts! Passed JQA high-speed vibration loosening test! Released case photos used in industrial applications!
The "Yurumanzo (W-V-LOCK)" is a safety bolt and nut that successfully eliminates loosening permanently by employing a ratchet mechanism between the bolt, nut, and washer, and by incorporating protrusions on the bottom surface of the washer that bite into the workpiece. All five units tested in the vibration loosening comparison test conducted by the Japan Quality Assurance Organization passed without loosening for over 17 minutes. 【Features】 ■ The bolt and washer are connected using a ratchet system, with several protrusions on one side of the seating surface. ■ The protrusions bite into the clamped object in a wedge shape, preventing the washer from rotating, thereby providing a loosening prevention effect for the entire screw. ■ Does not loosen even under strong vibrations or long-term use. ■ A loosening prevention mechanism with high safety and durability. ■ Patent obtained. *For more details, please request materials or view the PDF data from the download. *If you would like a sample, please contact us.
Ratchet mechanism, does not loosen with the biting protrusion. New type of small-diameter cap bolt.
The "W-V-LOCK Yurumanzō New Model" employs a ratchet mechanism between the bolt, nut, and washer, and additionally features protrusions on the bottom surface of the washer that bite into the workpiece, successfully eliminating loosening almost permanently. This product is a new type of "W-V-LOCK Yurumanzō," specifically a hex socket bolt (small diameter cap bolt) type. 【Features】 ■ The bolt and washer are connected using a ratchet system, with several protrusions on one side of the seating surface. ■ The protrusions bite into the fastened object in a wedge shape, preventing the washer from rotating. ■ It does not loosen even under strong vibrations or long-term use. ■ If removal of the screw is necessary, it can be detached by applying a slightly higher loosening torque than the tightening torque. *For more details, please refer to the PDF document or feel free to contact us.
![[Application Introduction] Bolts and Nuts for Piping and Pressure Vessels](https://image.www.ipros.com/public/product/image/68f/2000294709/IPROS3730372286305531539.jpg?w=280&h=280)
Proven track record for a wide range of applications! A trusted brand recognized both domestically in Japan and internationally.
Our company handles a variety of products used in diverse fields, including stud bolts, bolts and nuts for piping and pressure vessels. These products are utilized in petrochemical plants, LNG plants, oil refining, nuclear power generation, shipbuilding, water treatment, natural gas, heat exchangers, environmental equipment, thermal power generation, and many other applications, and are recognized as a trusted brand not only in Japan but also overseas. 【Main Applications】 ■ Petrochemical Plants ■ LNG Plants ■ Oil Refining ■ Nuclear Power Generation ■ Shipbuilding ■ Water Treatment ■ Natural Gas ■ Heat Exchangers ■ Environmental Equipment ■ Thermal Power Generation *For more details, please refer to the external link page. Feel free to contact us as well.
We will introduce the phenomenon where bolts and nuts become stuck and cannot be removed.
This article introduces the issues related to screw fastening in heat exchangers and piping, specifically the causes and solutions for "galling (seizing)." There are many factors said to contribute to galling, such as materials that are prone to galling, differences in thermal conductivity, and thermal expansion rates. However, galling occurs when the female and male threads rub against each other while tightening, generating frictional heat that causes the threads to momentarily melt, solidify, and seize. Therefore, the method of tightening that generates this frictional heat can be considered the fundamental cause of galling. As a solution, there is a "tensioning method" that allows for fastening without rotation. This fastening method enables tightening and loosening without rotation, thus preventing galling. [Proposed Products] ■ Super Bolt ■ Boltight *For more details, please refer to the PDF document or feel free to contact us.
Of course, we can also offer suggestions for items like "bolt and nut sets."
At Otsu Iron Works Co., Ltd., we offer a wide range of anchor bolts used in building foundations, as well as bolts and screw products for construction. In addition to standard "bolts and nuts," we can propose items such as the "HUG bolt," developed with repeated use in mind, and the "D-Lock," which has an integrated structure that prevents washers from falling off. 【Product Lineup】 ■ Hex bolts and hex nuts ■ Whit screws ■ Washers (taper washers) ■ Bolt and nut sets *For more details, please feel free to contact us.
Introducing six types of custom-made processed parts, such as "banjo bolts" and "brass lock nuts"!
This document is issue 164 of the information magazine "Yamarin Newspaper," published by Yamazaki Co., Ltd., which specializes in the sale of screws and general machine tools, the production of special screws, the sale of transmission parts, and machining. We introduce six types of custom-made processed parts, including products with various return-stop processing techniques and features such as "slotted screws" and "knurled needle bolts." We also include "Trivia about Screws" and "A Door to IT," so please take a moment to read it. [Contents] ■ Various Return-Stop Nuts ■ Custom-Made Processed Parts 27 ■ Trivia about Screws ■ A Door to IT (Introductory Edition) No. 39 *For more details, please refer to the PDF document or feel free to contact us.
