TechFast Composite Panels to Steel Hex Screw No.3 Tip 5.5 x 100mm Box 100 - ForgeFix TFHW19CPSD55150L, Forgefix TechFast Composite Panels to Steel Hex Screws with 19mm EPDM washers, are used to join composite panels to steel frame buildings. They have a specially designed compression control thread to prevent damage and denting of panels. They are fire and corrosion resistant, protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours. Complies with EU Safety, Health and Environmental requirements. They are supplied with 19mm EPDM rubber washers.These Forgefix TechFast Composite Panels to Steel Hex Screws have the following specification: Size: 5.5 x 150mmInsulation Thickness: 63-129mmPack Size: 100Drill Tip: No.3 No.3 drill tip for self-drilling in light gauge steel up to 5mm. ForgeFix TechFast Composite Panel - Steel Hex Screw No3 19mmWasher 5.5x150mm 100