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Stainless steel studs generally need to be surface treated. There are many kinds of stud surface treatments, such as electroplating, blackening, oxidation, phosphating, and non-electrolytic zinc coating. However, electroplated fasteners account for a large proportion of the actual use of fasteners. Especially in the automotive, tractor, home appliances, instrumentation, aerospace, communications and other industries and fields are more widely used. However, for threaded fasteners, it is not only required to have a certain degree of corrosion resistance in use, but also must ensure the interchangeability of the threads, which may also be referred to herein as the screwing property. In order to simultaneously meet the "preservative" and "interchangeable" dual-use properties required for the use of threaded fasteners, it is necessary to develop special plating standards. Strictly in accordance with ASTM A193 B7 B7M B8 B8M B6 B16, A320 L7 L7M 8B B8M grade production, specifications, processing capacity.

Stainless steel double-head studs are available in standard sizes: GB897, GB898, GB899, GB900, GB901, DIN938, DIN939, IFI136, double-headed drawings, etc. There are A-type thick rods and B-type thin rods. Its optional materials:

1, AISI4140, AISI4145

2. AISI304/S30400, AISI316/S31600

3. AIS410/S41000

4, Cr-Mo-V alloy steel