Hex Head High Thread TEK Screw

For fixing composite panel 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