12g-11 × 50mm GripMax™ C4 Timber Roofing Screw – Type 17
Specification Details Brand AEL Product Type Metal-to-Timber Self Drilling Screw Gauge 12g (5.5 mm) Length 50 mm Point Type Type 17 Thread Pitch 11 TPI Thread Style Top Grip / Knurled Material Hardened 1022 Carbon Steel Head Type Hex Flange Head Washer EPDM Bonded Washer Surface Finish Mechanical Galvanised + Ruspert 1500H Corrosion Rating Class 4 (C4) Standard AS3566 Quantity 500 pcs per box Approx. Screw Weight 7.9 g each