Designed for: Fixing components, brackets and miscellaneous hardware to light gauge steel substrates where a low profile or anti-snag head is required. Also suitable where dissimilar metals are being used or superior corrosion resistance is required. Head style: 12mm ᴓ low profile (3.18mm dome head) Drive: Torx 25 female drive recess Thread form: Fine thread (pitch = approx. 1.05mm) Drill point: Tek 5 Material grade: SAE C1022 carbon steel – drilling point AISI 304/EN 1.4301 (A2) stainless steel – shank and head Washer: 12mm vulcanised EPDM with stainless steel compression disc Recommended drill speed: 1500 – 2500RPM Coating: 5µm electroplated zinc