Do It 729973 Exterior Combo Drive Deck Screw 1 Lb

Product Description

The DO IT 729973 is a 1-pound box of exterior combo drive deck screws engineered for demanding outdoor fastening applications. Each screw features a galvanized base with PrimeGuard Plus coating that provides high corrosion resistance and a finish color closely matched to treated lumber. The flat countersinking head seats flush without requiring a pre-drill, and the Type 17 drill tip bites directly into wood. The extra coarse thread pattern is designed to reduce wood splitting and lower driving friction, making installation faster and cleaner. Licensed contractors and experienced DIYers install these in exterior structural and finish work.

These screws are suited for a wide range of exterior applications including decks, docks, fences, and gazebos. The PrimeGuard Plus coating meets requirements for use with treated lumber, making them a direct choice for pressure-treated deck framing and decking boards where standard fasteners would corrode prematurely. The 1-pound box format is practical for mid-size projects or job-site restocking without carrying excess inventory.

Key Features

• Galvanized base with PrimeGuard Plus coating for high corrosion resistance
• Compliant for use with treated lumber
• Type 17 drill tip drives into wood without pre-drilling
• Flat countersinking head seats flush with the surface
• Extra coarse thread pattern reduces wood splitting and driving friction
• Finish color matched to the appearance of treated wood

Compatibility

Designed for exterior wood fastening applications including decks, docks, fences, and gazebos. Compliant for use with treated lumber.

Installation Notes

Drive these screws using a combo-bit driver or drill with appropriate torque settings to avoid overdriving and countersinking too deep into decking material. No pre-drilling is required for most wood substrates when using the Type 17 tip, though pilot holes are recommended near board ends to minimize splitting in dense or dry lumber. Always follow local building codes for fastener spacing and penetration depth on structural deck applications. Keep fasteners dry during storage to preserve the coating before installation.