Phillips buble head drywall screw back phosphated

Productio Range：

RECESS Philips, Quadratus, Torx

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

CAPITULUM cornu caput

TANDEM#6,#7,#8-7.9-8.4 #10 8.6-9.2 #12,#14-11.8-12.4

Grade：C1022A

NORMA

Phosphatum nigrum , zincum patella , Flavum , Zinc patella , Dacromet , Ruspert , Magni

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