TechFast Composite Panels to Steel Hex Screw Washer Range - Pk100 - ForgeFix TFHW16CPSD5585H, ForgeFix TechFast Composite Panels to Steel Hex Screws with 16mm 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 16mm EPDM rubber washers.These Forgefix TechFast Composite Panels to Steel Hex Screws have the following specification: Size: 5.5 x 85mmInsulation Thickness: 37-50mmPack Size: 100Drill Tip: No.5 No.5 drill tip for self-drilling in heavy gauge steel up to 12.5mm. ForgeFix TechFast Composite Panel - Steel Hex Screw No5 16mm Washer 5.5x85mm 100