46 INSULATION FIXINGS HEAVY DUTY ROOFING SCREW Heavy Duty Roofing Screw Designed For: Fixing insulation and single ply membrane to plywood, timbers, steel decking and concrete. Head Style: Dome Head (Pan) Drive: PH3 Thread Form: Coarse single thread Material Grade: AISI C1022 Coating: 500hr Evoshield® ✓ Evoshield Coating ✓ Fixing insulation and single ply membrane to plywood, timbers, steel decking and concrete.** ✓ For fixing ply and other roofing layers to timber ✓ Low profile pan head for application versatility ✓ Washers also available ** a 5mm pilot hole allows fixing to steel from 1.2 to 2mm, fastener is self piercing in 0.7mm track. ** a 5.15mm Pilot hole is required for concrete. Hole must be 15mm deeper than screw embedment. Stress Plates Designed For: Spreading the loading when fixing membrane, insulation and single ply materials in roofing applications, preventing the material being fastened from pulling over the head of the fastener. 2002/95/EC