5.5 x 50mm 16mm Washer Pan Stitching Screw 2.5mm Bi-Metal A2 BMDH5.5-50-2

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: Coarse thread (pitch = approx.. 1.8mm) Drill point: Tek 2 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