Acorn SW-MW3W250 Screw, White, High-Low, Twin Lead Thread, Hex Drive, Self-Tapping, Type 17 Point, 250/BAG GRINDING WHEELS/SHARP STONES Fiberglass handle provides better grip

Fiberglass handle provides better grip & less vibration

Ideal material for prolonged contact with water

An all metal sprinkler that will gently water an area up to 32 feet by 32 feet

You can also use this register as an insulator

Acorn SW-MW3W250 Screw, White, High-Low, Twin Lead Thread, Hex Drive, Self-Tapping, Type 17 Point, 250/BAG GRINDING WHEELS/SHARP STONES Fiberglass handle provides better grip#9 15 Metal to wood screws are sealing self piercing tapping screws made from heat treated Steel, case hardened for roofing and siding applications. A 1 4 in across flats high hat hex washer head with assembled EPDM washer offers easy driving and conforms to the metal 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 pullout. All screws are 1000 hr salt spray