TEK SCREW H/HD H/THREAD 19mm WASH 5.5/6.3x85 3PT

Packed: 100 This self drilling roofing fastener is designed specifically for fixing composite panel sheeting to light purlins (1.2mm - 3mm) or timber It can also be used for fastening steel wall channeling through insulation to studs The unthreaded piece ensures panel surfaces are not deformed The fixing incorporates both a washer, to compress to the outer skin to ensure a weathertight seal, and a high thread which gives positive support to the outer sheet Panels can be fixed through the valley or crown of the profile The fasteners must not be over tightened to achieve the correct seal Technical Info: Driver Type8mm (5/16") A/F Thread TypeCoarse Thread Point TypeNo. 3 Max Steel Thickness3.6mm Max Fixture Thickness55mm