ignation Des E11 E12 E13 E14 E23 E24 E25 ensions Dim Unifast Roofing/cladding + board to light section steel Self-drilling screws for fastening roofing and intermediate board to light section steel. Thread- free section that prevents the sheet from being driven up against the head and deforming. Larger thread under the head for secure sealing against the outer sheet. Hexagon head and bonded EPDM sealing washer. ngth p le Clam Min Drill capacity cl. rosiotnection terial Max Cor pro Ma asher Ø W /socket Bit tity/pack cription Quan Des 5,5 x 36 0 - 14 1,2 2 x 2,0 C2 - C3 14 8 mm 250 5,5 x 51 0 - 22 1,5 2 x 2,0 C2 - C3 14 8 mm 250 5,5 x 48 22 - 35 1,5 2 x 2,5 C2 - C3 14 8 mm 250 5,5 x 80 42 - 65 1,5 2 x 2,5 C2 - C3 14 8 mm 150 5,5 x 43 0 - 18 1,5 2 x 2,0 C5 5,5 x 36 18 - 24 1,5 2 x 2,0 C5 5,5 x 50 26 - 36 1,5 2 x 2,0 C5 16 8 mm 250 Stainless steel 16 8 mm 250 16 8 mm 250 Unifast assembly function Unifast’s thread-free section prevents the sheet metal from being driven up against the head and deforming during the drilling stage. When the screw’s lower threaded section has penetra- ted the material, the screw’s upper threaded section pulls the sheet metal against the sealing washer for tight assembly. 28 Marutex presentation pages 7-11 C F Paint systems pages 98-99
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