Bi-metal screw

Product parameter:

DIA: 4.8mm -8.0 mm 

Length: 19mm -200 mm 

Point:1#,2#,3#,up to 5#pt and self-tapping screw

Surface: Galvanization,Ruspert

Product Features:

Have no any grain boundary carbide corrosion.

Specialized in heavy gauge steel plate 1.0-12mm.

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