Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
241～255 item / All 341 items
It is optimal for fastening wood together. The head is thin and has a large shape, which provides a clamping effect on the opposing material.
It is optimal for fastening wood materials together. The head thickness is thin, and the head has a large shape, which provides a clamping effect on the opposing material. It can also be driven into thin steel plates. *For more details, please download the catalog or feel free to contact us.*
It is suitable for fastening to concrete substrates.
It is suitable for fastening to concrete substrates. *For details, please download the catalog or feel free to contact us.*
It is optimal for fastening the tight frame to the wooden base.
It is optimal for fastening tight frames to the base. *For more details, please download the catalog or feel free to contact us.*
It is used when constructing suspended folded plates.
It is used when constructing suspended folded plates. *For details, please download the catalog or feel free to contact us.*
It is used when integrating with various types of screws.
It is used when integrating with various types of screws. *For more details, please download the catalog or feel free to contact us.*
It helps improve the water-tight performance of fastening materials used in slate roofs and standing seam roofs.
It helps improve the water-tight performance of fastening materials used in slate roofs and standing seam roofs. *For more details, please download the catalog or feel free to contact us.*
It improves the water-stopping performance for the assembly of screws, bolts, and the like.
It improves the water-stopping performance for the assembly of screws, bolts, etc. *For details, please download the catalog or feel free to contact us.*
For the purpose of screw assembly, it improves the water-tight performance of screw fastening.
For screw assembly, we will improve the water-tight performance of screw fastening. *For details, please download the catalog or feel free to contact us.*
![[MRO Stocker Implementation Case] Automotive Parts Manufacturer, Company M](https://image.mono.ipros.com/public/product/image/654/2000655656/IPROS02274286762369123368.png?w=280&h=280)
Enjoy the benefit of being able to use it immediately when needed! A case of efficiency achieved with pack screws and an app.
We would like to introduce a case study of Company M, an automotive parts manufacturer, who implemented our tool version service "MRO Stocker," which handles "on-site medicine." The company introduced our product, focusing on bolts and screws. As a result, they expressed, "We have simplified the management of a small variety of screws with pack screws and the app, and we are truly grateful for the benefit of being able to use them immediately when needed." 【Case Study】 ■ Implementation Location: Automotive Parts Manufacturer, Company M ■ Inventory Count: 114 Items ■ Number of Units Installed: 2 Lightweight Shelves ■ Installation Location: Within the Factory ■ Main Inventory Items: Screws and Bolts *For more details, please refer to the PDF document or feel free to contact us.
We accept inquiries regarding cost reduction, shortened delivery times, and small lot production for screws, bolts, and cold-formed parts.
The products of Koyauchi Fasteners Co., Ltd. are used in various industries and fields that form the foundation of daily life, including construction, civil engineering, automotive, electrical, industrial machinery, toys, medical devices, railway vehicles, and agricultural machinery. In particular, our "non-standard sizes," which are thick and short or thin and long, are highly appreciated by many customers. We aim to contribute even more to the industries and fields that support our daily lives through product development that meets customer needs, in addition to our existing product lineup. 【Business Description】 ○ Manufacturing and processing of screws, screw-attached parts, industrial parts, etc. For more details, please contact us or download the catalog.
We have manufacturing experience with various types of iron, stainless steel, brass, and aluminum!
Our company handles "wood screws" that are finished to a stable quality without any leading or extending. The screw features a pointed tip and has threads cut on the lower two-thirds of the shaft, eliminating the need for nuts or female threads. According to standards, there are two types of head recesses: one with a (+) cross hole and one with a (-) slotted hole, and three types of head shapes: flat head, round flat head, and round head. 【Features】 ■ Used for fastening wood ■ Pointed tip ■ Threads cut on the lower two-thirds of the shaft ■ No need for nuts or female threads ■ Three types of head shapes: flat head, round flat head, and round head *For more details, please download the PDF or feel free to contact us.
Outstanding workability at a low cost! Introducing screws that are resistant to breakage and loosening.
The "Motion Tight N Type" has a structure that averages the load on the screw threads, which also disperses the stress on the screw valleys, making it less prone to breakage. It reduces the variation in axial force to about half, providing a more stable axial force compared to standard screws. By simply tightening, it can effectively prevent loosening, allowing for proper torque management. It achieves low-cost production through rolling processing, and it can be replaced with existing screws while maintaining high quality. 【Features】 ■ Fatigue strength 1.2 times higher, excellent workability ■ Stable axial force even without lubrication ■ High loosening prevention capability with the bolt alone ■ Low cost, high quality, reusable *For more details, please refer to the PDF materials or feel free to contact us.
![[Case Study of Head Taper CAP] Vehicle](https://image.mono.ipros.com/public/product/image/d5c/2000483012/IPROS53549761141874572192.png?w=280&h=280)
Due to the reduction in material weight, it also led to weight reduction! An introduction to examples implemented in the motorcycle industry.
We would like to introduce a case study of the "Head Taper CAP," which excels in lightweight design and can be processed in-house. The adoption of this product in the motorcycle industry, which pursues design aesthetics, has led to a reduction in material weight, contributing to overall weight savings. It is widely used in motorcycle parts and, beyond motorcycles, we encourage consideration for enhancing the appearance of screw sections. 【Case Study】 ■Implementation: Vehicles (Motorcycle Industry) ■Implemented Product: Head Taper CAP *For more details, please refer to the PDF document or feel free to contact us.
【*Prototype trials now open!】Hard to loosen and hard to break! A bolt that enhances work efficiency while promoting lightweight and energy-saving features.
The "Motion Tight" handled by Art Screw is a revolutionary bolt that eliminates the two major complaints in screw fastening: "loosening and breakage of screws." The screw threads are slightly inclined on the seating surface, providing strong rebound force and high loosening prevention capability. Additionally, the stress dispersion effect in the screw valleys enhances fatigue strength, making it resistant to delayed breakage. Furthermore, since the screw threads are formed through rolling processing, it is low-cost and high-quality. 【Features】 ■ Powerful loosening prevention capability with the bolt alone ■ Fatigue strength 1.2 to 1.3 times higher, with the same workability as standard bolts ■ Stable axial force even without lubricating oil ■ Low price, high quality ■ Reusable For more details, please refer to the catalog. Feel free to contact us with any inquiries.
Difficult to loosen and difficult to break! A bolt equipped with stable axial force. Strength grade 8.8 or higher! A detailed explanation of its functions, features, and anti-loosening structure!
This is the technical documentation and product description for the high-performance, anti-loosening bolt "Motion Tight" handled by Art Screw. [Contents] ■ High-performance, anti-loosening bolt "Motion Tight" - Overview - Functions / Manufacturing / Sales / Pricing ■ Motion Tight Structural Diagram ■ Stress Distribution Diagram (Axial Force 30KN) ■ Fatigue Test (JISB1081) ■ Load Distribution Ratio of Thread Flanks, etc. *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
