No.5 point Hexagon Head Tek screws for heavy steel

No.5 point Hexagon Head Tek screws for heavy steel  Specification

Screw Dia	Length	Point	Washer  Dia	ETL	Max Build Up
12g	38mm	5pt	16mm	16mm	Sheet & Rail
12g	38mm	5pt	19mm	16mm	Sheet & Rail
12g	51mm	5pt	16mm	29mm	Sheet + 20mm
12g	51mm	5pt	19mm	29mm	Sheet + 20mm
12g	67mm	5pt	16mm	45mm	Sheet + 35mm
12g	67mm	5pt	19mm	45mm	Sheet + 35mm
12g	76mm	5pt	16mm	54mm	Sheet + 45mm
12g	76mm	5pt	19mm	54mm	Sheet + 45mm
12g	100mm	5pt	16mm	78mm	Sheet + 65mm
12g	100mm	5pt	19mm	78mm	Sheet + 65mm

              Features:Tek screws for heavy steel  Steel to Steel For Heavy Section Purlins  (Hot Rolled Purlin) Head: Hexagon Self-Drilling. Roofing screws with a 5/16th hexagonal head for attaching sheets to heavy section steel purlins, between 6.0mm to 12.5mm. The 16mm rubber washer beneath the aluminium flange expands under pressure and forms a permanent weather-seal. Designed for fixing cladding and sheet metal to light and heavy structural purlins as used when constructing industrial units.