Hillman Fasteners 117908 Roofing Screw No. 10 X 1 Inch Red

Product Description

The HILLMAN FASTENERS 117908 is a No. 10 x 1 inch self-drilling metal-to-wood roofing screw with a red powder-coat finish, sold in a box quantity of 5. It is designed to fasten steel roofing panels directly to wood substrates without a pilot hole. The hex washer head (HWH) features a V-neck design that adds shear strength and helps prevent head pop-through under load. An EPDM rubber gasket is vulcanized directly to a steel washer, forming a weathertight seal even when the screw is driven slightly off-angle. Licensed contractors, metal building erectors, and framing crews install these fasteners in post-frame and light-gauge residential construction.

This screw is intended for attaching steel roofing and cladding to wood purlins in post-frame structures, as well as to plywood or OSB roof decking in residential construction. The thread design transitions from fine to coarse along the shank, optimizing pull-out resistance across a range of wood substrate densities. A micro-bit point geometry minimizes metal shavings during penetration, reducing contamination of the EPDM washer seal. Each box includes a Pro-Stick driver bit for immediate field use.

Key Features

• Self-drilling point eliminates pre-drilling into wood substrates
• EPDM rubber gasket vulcanized to steel washer for a reliable weathertight seal at angles
• HWH with V-neck design increases head strength and resists pop-through
• Fine-to-coarse thread transition delivers superior pull-out strength in wood purlins, plywood, and OSB
• Micro-bit point reduces metal shavings that could embed in the rubber washer
• 2.5 mils powder coat with chromate sealer provides enhanced corrosion resistance over painted heads
• Pro-Stick driver bit included

Compatibility

Designed as a metal-to-wood self-drilling roofing fastener for steel roofing panels attached to wood purlins in post-frame construction and to plywood or OSB decking in residential roofing applications.

Installation Notes

Installation is performed by roofing contractors, metal building crews, or framing carpenters using a hex-head power driver or impact driver set to a controlled torque to avoid over-driving and compressing the EPDM washer. Drive fasteners perpendicular to the panel surface where possible; the EPDM washer accommodates minor off-angle drives without compromising the seal. Avoid overdriving, which will deform the gasket and reduce sealing effectiveness. Follow applicable building code requirements and panel manufacturer spacing specifications for fastener layout.