Self-piercing tapping screws forged from heat treated steel, case hardened for roofing and siding applications.
The screw drills its own hole, forms mating threads and makes a complete secure fastening in a single operation.
Twin lead type 17 point and Hi-Lo threads provide a faster drive time and stronger resistance to pullout.
All screws are 1000 hour salt spray test dacro-coated.
وصف
Best for metal-to-wood applications. Self-tapping type 17 point. Twin lead threads for fast drive time. Hi-Lo threads for increased hold. Bonded EPDM washer. 1,000 hour dacro coating. Packaged in convenient resealable bags of 250.