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The HILLMAN FASTENERS 117435 is a 250-piece contractor pack of No. 10 x 1 inch Koko Brown self-drilling roofing screws engineered for metal-to-wood applications. These screws feature a Micro-Bit point that starts fast, finishes straight, and reduces metal shavings that could embed in the rubber washer and compromise the seal. The Edmo rubber washer is vulcanized to a steel washer for a reliable weathertight seal even when driven at a slight angle. A HWH head with V-Neck design adds pull-through strength and prevents head popping. The coating delivers 2.5 mils of powder with a chromate sealer, providing enhanced corrosion resistance over painted heads and backing a 40-year warranty. A Pro-Stick bit is included.
These screws are designed for fastening steel roofing panels to wood purlins in post-frame construction and for attaching plywood or OSB sheathing in residential construction. The Koko Brown color coordinates with common brown metal roofing profiles. The 250-piece contractor pack suits volume installation work on agricultural buildings, pole barns, and residential metal roof projects where consistent color-matched fasteners and reliable sealing are required.
Designed for metal-to-wood roofing applications, specifically fastening steel roofing panels to wood purlins in post-frame construction and attaching plywood or OSB sheathing in residential construction.
Installation is performed by roofing contractors and general carpenters using a standard hex-drive power screwdriver or drill. Ensure the correct driver bit size is used — the included Pro-Stick bit is recommended to maintain proper torque control and prevent cam-out. Drive screws perpendicular to the panel surface where possible; the vulcanized washer provides sealing tolerance for slight angles. Follow local building codes for fastener spacing and edge distance on metal roofing assemblies.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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