New Products

Non-Standard Screw

Stainless Steel U-Bolt For Pipe Fitting

U-bolts, also known as riding bolts, are "U"-shaped fasteners with threads on both ends that can be used with nuts. It is mainly used to firmly fix or hang tubular or rod-shaped objects (such as pipes, steel pipes, cables, etc.) on supporting structures.

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One-Slot Round Head Screw

The slotted round head screw is a classic fastener, and its hemispherical round head and slotted design are its distinctive features. The round head design is beautiful, can provide good surface contact, and reduce pressure loss on the surface of the workpiece.

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Carriage Screws

Carriage screw, also known as square neck bolt, is a classic fastener with unique structure and reliable locking. Its most distinctive feature is the one-piece square neck below the bolt head.

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Knurled Head Cylindrical Pin Screw

Knurled head cylindrical pin screw is a high-performance hardware with both fastening and positioning functions. Its unique cylindrical pin-shaped rod can achieve a tight fit with the precision holes on the base body, providing precise positioning and shear resistance, effectively preventing misalignment between components.

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Rivet The Vent Plug Screw

The pressure riveting vent plug screw is an innovative fastener that integrates pressure riveting installation and pressure balancing functions. The core of its design is that the lower part is a tapered thread, and the upper part is a plug body with built-in micro ventilation channels.

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Stainless Steel Non-Standard Screws

Wenzhou Riyi Standard Parts Co., Ltd. was established in 2014, specializing in customizing various new types of fasteners. We have a professional core R&D team and have introduced advanced multi-station cold heading equipment, emphasizing product research and innovation. Our complete production process makes our fastener products highly versatile. Our export products are sold worldwide. In 2015, the company registered the "Riyi/RIYI" brand trademark and has passed the ISO9001:2015 quality management system certification. With 10 years of industry experience, we serve the automotive, mechanical, construction and other industry fields. We are committed to providing you with one-stop fastener procurement, supporting OEM processing, customizing based on your drawings or samples, large and small batch customization, enjoying the price advantage of factory direct sales, and providing AutoCAD product design drawings. We will become your partner in China and look forward to cooperating with you to achieve cost reduction and efficiency improvement, and realize a win-win situation.

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Latest News

Standard and Non-Standard Hardware: Best Choice for Buyers
2026-05-25
When buying hardware and fasteners for machines and production, buyers usually need two kinds of products: standard parts and non-standard custom parts.
Non-Standard Nuts: Core Advantages and Professional Customization from Wenzhou Riyi Standard Parts Co., Ltd.
2026-05-20
In the fast-paced industrial world, standard nuts often fail to meet the specialized needs of complex equipment and custom projects.
Wenzhou Riyi: Your Trusted Manufacturer & Supplier of Custom Non-Standard Screws
2026-05-12
In today’s competitive industrial landscape, non-standard parts are critical for meeting unique engineering and assembly requirements.
The Growing Market Demand for Non-standard Screws and Bolts: Riyi Standard Parts’ Response
2026-05-06
In the global manufacturing landscape, the demand for customized fasteners has been soaring in recent years, driven by the rapid development of high-end equipment manufacturing, new energy, aerospace, and precision instrumentation industries.