Well designed hex head screw with washer self drilling screws zinc plated

designed head Hex screw well

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Well designed hex head screw with washer self drilling screws zinc plated

Production Range：

RECESS： Philips,Square,Torx

DIA：#6-3.5 #8-4.2 #10-4.8 #12-5.5 #14-6.3

HEAD：bugle head,Hex washer head,flat head,Pan Head, wafer head,pan framing head

LENGTH：

Grade：C1022A

NORM：ASTM，DIN7504K,DIN7504P,DIN7504N

Surface：black phosphate,zinc plated,Yellow Zinc plated,Ruspert,Magni

Thread：BSD thread CSD thread