Metal to wood screws are self-piercing, sealing tapping screws made from heat treated C1022 steel; case hardened for roofing and siding applications. Features a 1/4" across flat high hat hex washer head with assembled EPDM (Ethylene Propylene Diene Monomer) washer, offers easy driving and conforms to the surface for a secure and long-lasting seal. The twin lead type 17 point, and hi-lo threads offer faster drive time and greater resistance to pull out. All screws are 1,000 hour salt spray test dacro-coated. The color screws are powder-coated over the dacro base coating. Screws are packed 250 pieces.
Features:
Metal to wood screws are self-piercing, sealing tapping screws made from heat treated C1022 steel
Hardened for roofing and siding applications
Flat high hat hex washer head with washer
Easy driving and conforms to the surface for a secure and long-lasting seal
Offers a coarse tapping screw thread as well as a special long sharp point that is fluted in order to capture chips