Forgefix TFHW16CPSD55105H 5.5 x 105mm Hex Head Composite Screw 100pkThese Forgefix TechFast Hex Head Composite Screws are designed for securely fastening composite panels to steel. With a self-drilling tip, they are suitable for use in heavy gauge steel up to 12.5mm thick.Features 5.5 x 105mm size No. 5 drill tip for self-drilling Suitable for insulation thicknesses from 32-70mmSpecifications Brand: Forgefix MPN: TFHW16CPSD55105H EAN: 5028485195153 Pack Size: 100