square head with a hole screw plated yellow zinc

Shanghai Jinrui Norm Parts Supplies CO. Ltd., Ltd. is specialized manufacturing fasteners and accessories with a subsidiary of Shanghai XingRui Bolt Factory. The main products of the company include the following 7 types:

1. High strength alloy steel double end stud- , fully-threaded stud and heavy hex nut applied on petrochemical industry, boiler and wind power generation. The diameter is from M20-140MM and the length is from 60MM-1400MM.

2. Metric and ANSI round head oval neck bolt (fish bolt) with mechanical property of Grade 8.8 and 9.8.

3. Bolt used on guardrail panel of expressway with mechanical property of Grade 4.8 and 8.8.

4. Elevator guide rail bolt and big hexagon bolt for steel structure, shearing bolt with mechanical property of Grade 8.8, 10.9 and 12.9.

5. Stainless steel internal and external hexagon bolt products: A2-70, A4-80. Material: 304, 316, 316L.

6. International internal and external hexagon bolt with the mechanical property of Grade 4.8, 8.8, 10.9 and ANSI Grade 2, 5 and 8.

7. Various nuts, flat gaskets, spring washers, mechanical bolts, tapping screws, fiberboard screws and hexagonal wood screws, etc. We can also process non-standard fasteners according