Fasteners Plus ST Fastening #12 x 4-1/2" InsulDrill Metal Roofing Screw - Crimson (Pack of 100)

Fasteners Plus ST Fastening #12 x 4-1/2" InsulDrill Metal Roofing Screw - Crimson (Pack of 100)

[#12 Diameter Screw] 1/4" HWH thread design has excellent holding strength in wood [#1 DRILL POINT] Penetrate steel thickness up to 18 gauge [BLACK E-COAT] Corrosion resistant coating is standard on all screws [G-90 BONDED SEALING WASHER] Assembled to the fastener [APPLICATIONS] Retrofit & metal panels through rigid insulation to wood InsulDrill screw is a self drilling, hex washer head metal roofing screw that provides several features to strengthen the metal to wood bond in roofing. The G-90 bonded sealing washer is attached to the fastener, which allows the screw to create a watertight seal to its application. With a #1 drill point, the InsulDrill screw can penetrate 18 gauge steel without pre-drilling and the thread is designed to have excellent holding strength in wood. There is a black e-coat corrosion resistant coating on all screws.