DIN7981 Stainless Steel SS304 SS316 316L Pan Head ...
DIN7981 Stainless Steel SS304 SS316 316L Pan Head Hexalobular Socket Self Tapping Screws A screw, or bolt, is a type of fastener, typically made of metal, and characterized by a helical ridge,known as a male thread (external thread) or just thread, wrapped around a cylinder.
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