Acorn SW-MW1BS250 Metal Building Screw, 1" Ventilated Storage Shelves Ultra flexible to -40 degrees

Ultra flexible to -40 degrees Fahrenheit

No soldering or glue

Non staining

Temperature control : Thermostat

Black molded high density polyethylene

Acorn SW-MW1BS250 Metal Building Screw, 1" Ventilated Storage Shelves Ultra flexible to -40 degreesHighlights: #9 15 metal to wood screws are sealing self piercing tapping screws made from heat treated C1022 steel. Case hardened for roofing and siding applications. A 1 4" 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 1,000