The Macsim 12-24 x 32mm Hex Flange Head Self-Drilling Screws are engineered for high-performance metal-to-metal fastening. These fasteners feature an extended drill point and a Class 4 (C4) galvanized coating, providing superior corrosion resistance suitable for external environments. Supplied in a 1000-piece trade box, they are ideal for industrial-scale construction and roofing applications.
Source: Technical specifications for C4-rated industrial fasteners provided by Macsim Fastenings.