Screws (mechanical screws, wood screws, concrete screws, drywall screws, wood screws, etc.) Bolts (hexagonal heads, flange heads, countersunk heads, round cup heads, high-strength cement bolts, etc.) Nuts (hexagonal, locking, butterfly, cap, special-shaped, etc.) Stamping parts (large flat gaskets, spring washers, retaining rings, pins, etc.)

Zhejiang Zhongyu Fastener Co., Ltd. specializes in the production of various non-standard stainless steel products, including 304, 201, 316, as well as high-strength screws of grades 10.9, 12.9, and 8.8. Products also cover DIN7991 flat head socket cap screws, ISO 7380 round head cap screws, DIN912 socket head cap screws, and ISO 7380.2 round head cap screws with washers. In addition, we can produce and design various high-strength non-standard special-shaped parts according to customers' requirements.

Cold heading dies, special-shaped punches and pins

Cold Heading Machine

Three-piece extended bolt, hexagonal flange face extended bolt, engine extended bolt, cylinder head extended bolt, new energy extended bolt, energy storage cabinet extended bolt, photovoltaic extended bolt, motor extended bolt, oil pump extended bolt, industrial robot extended bolt, electric vehicle wheel axle, complete vehicle accessories for ATV, disc brake disc bolt, high-strength knurled bolt

Precision non-standard parts, automotive parts, electronic parts, and sensor accessories

Welding Screws、Weld Nut Studs / Welding Nut Standoffs、Capacitor Discharge Welding Studs (CD Weld Studs)、Projection Welding Screws、Press-Fit Screws、Press-Fit Screws、Self-clinching Studs、Blind Rivets

High-Strength bolts and Hardware fasteners