Profile: Standfirm Screw Co. Ltd specializes in designing and manufacturing highly engineered fasteners and components. Our main products are carbon steel, stainless steel and copper screws with a diameter range from M3 ~ M27, 1/8 ~ 1-1/2. Our company manufactures these products complying with the domestic and the overseas standards including the Japanese Industrial Standards (JIS), the Germany Industrial Standards (DIN), the American National Standard Institute standards (ANSI), the British Standards (BS) and the Chinese Standards (GB). We also accept customized designs and standards provided by clients. We are the general agent of many famous domestic manufacturers in China.

Diameter range: M3 ~ M27, 1/8 ~ 1-1/2
Length range: 6 ~ 300, 1/4 ~ 12
Performance of bolt: 4.8, 6.8, 8.8, 10.9, 12.9 or equivalent
Performance of nuts: 4, 5, 6, 8, 10, 12 or equivalent
Finish: zinc plating, nickel plating, hot dip zinc, chrome plating, dacromet and RoHS
Material: carbon steel, alloy steel, stainless steel and colored metals.

Our products are widely used in electric appliances, automobiles, instruments and constructions. We produce all kind of screws. Now we have over 1000 kinds non-standard fasteners, which include some super length, super-short and processing complicated parts. We also manufacture standard and non-standard fasteners for assemblers of motorcycle whole-body, telescopic springing and frame and other accessories. We implement the ISO 9000 quality control systems for quality fasteners and components. Our products also inclued 10.9 , 12.9 grade high tensile hex bolt/nut for steel structures, shear pin, anchor bolt, heavy anchor bolt of different type, stainless steel bolts and connection rod for chemicals and building walls, fastening bar, two-finger, four-finger bolts, glass bolts, stainless steel threaded rod, steel turnbuckle, self-clinching bolt.