Self-drilling screw

Material: C1022

Size: 5.5*25mm..55mm, 60mm, etc.

Length: 13—150mm

Feature: hex/countersunk/frame/wafer (truss) head, with or without wings, drilling point

Finished: galvanized (blue/white/color)

Usage: widely used in soft steel, construction, industry, daily life or other metals to fasten metal or other hard materials.