29600200018.8-grade flat round head welding screw M6*20 is made of 10B21 material (quenched) with natural oil washing treatment. The three-welding point design is easy to weld on iron parts.
45600001204Welding nut M6 effective thread length 12mm disc diameter 16mm thickness 2mm. Adopt ML08AL, natural color oil washing treatment, three welding point design is easy to weld on iron parts
59480000101The reed nut ST4.8 is made of Q235 or 65Mn (quenched), and the surface treatment is trivalent black zinc or trivalent colored zinc.
32480130301Cross recessed stool head self tapping screws ST4.8*13 are made of ML08AL or SWRCH22A (carburized), and the surface treatment is trivalent black zinc, trivalent colored zinc
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