Countersunk Flat head, self-drilling screw used to fix metal sheet, thin iron sheet in installation. Fine thread, self-drilling point, that allows bore into the metal sheet without pre-drilling holes.
Drive type:Pozi, Torx , Philips
Surface treatment:Zinc plated, Phosphated.
Core hardness:300-460HV
Surface hardness:Min 450HV
Bending angle:Min 15º
Salt spray test:24H-96H
Certification:ISO9001
Non-standards:OEM based on the offered drawing or sample