... Protection: Black oxide, Phosphate, Zinc plated OEM Knights introductionScrew with Plastic Head Confirmat Screw 1.Specification:5*40,5*50,6 ... ,7*50,7*70,7*85 2.Material:C1008,C1006 3.Standard:DIN1. Screw with Plastic Head Confirmat Screw Material:C1008 Surface ... platedconfirmat screw7.0*70(sharp nail)10.4zinc plated new design screws with plastic head