In today’s competitive industrial landscape, non-standard parts are critical for meeting unique engineering and assembly requirements. As a professional non-standard screw manufacturer based in Wenzhou, China, Wenzhou Riyi Standard Parts Co., Ltd. (RIYI) specializes in custom non-standard screw solutions, delivering high-quality, precision-engineered fasteners for diverse industries worldwide.
Expertise in Non-Standard Screw Customization
Unlike standard screws, non-standard screws demand tailored designs, special dimensions, unique head styles, or uncommon materials—exactly where Riyi excels. The company focuses on separate non-standard part development and production, handling every project from initial drawings and rapid prototyping to mass production. Whether you need irregular shapes, special threads, high-strength grades, or corrosion-resistant materials (stainless steel, alloy steel, carbon steel, aluminum), Riyi’s technical team delivers one-stop custom non-standard screw services.
Advanced Manufacturing & Strict Quality Control
Riyi operates a modern production base in Wenzhou Binhai Economic and Technological Development Zone, equipped with advanced multi-station cold heading machines, CNC lathes, and heat treatment lines. The factory follows ISO 9001:2015 quality management system standards, ensuring every custom non-standard screw meets tight tolerances and consistent performance. From raw material selection to surface treatment (zinc plating, black oxide, passivation), each process undergoes rigorous inspection to guarantee reliability.

Wide Applications & Global Reach
Riyi’s custom non-standard screws serve industries including automotive, electronics, electrical appliances, machinery, construction, and aerospace. The “RIYI” brand, registered in 2015, is recognized for innovation and quality, with products exported to Southeast Asia, Europe, and the Americas. Whether for small-batch prototypes or large-volume orders, Riyi adapts to client needs with flexible MOQs and efficient lead times.
Why Choose Wenzhou Riyi?
Professional Non-Standard Screw Manufacturer: Deep expertise in custom fastener design and production.
Tailored Customization: Separate development for non-standard parts, no standard limitations.
Quality & Reliability: ISO certification, advanced equipment, strict QC processes。
Full-Service Support: From drawing confirmation to after-sales assistance.
For all your non-standard screw customization needs, Wenzhou Riyi is your reliable partner—delivering precision, quality, and value in every fastener