10g-16 x 20mm - 1000pc Undercut Self Drilling Screws Zinc Plated (with 8g head)

Zinc Undercut Self Drilling Screws have a hardened self drilling point which cuts through mild steel without the need for pre-drilling. However for thick or hardened steel pre-drilling may be required. The undercut countersunk head allows the screw to sit flush even with thin materials and the zinc coating is suitable for most indoor applications.