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hexagon head wood screws din571 wood screws
Features:1.STANDARD:DIN751,ISO ,ASME/ANSI ,BS ,JIS ,GB2.SIZAE:M4-M163.Material:carbon steel , mild steel ,sus304,sus316 and so on .4.SURFACE: Plain, Zinc Cr+3, Yellow Zinc Cr+6,5.Packing:Bulk,box packing
hexagon head wood screws din571