Hillman Fasteners 47866 Bronze Ceramic Lag Screws 75 Pack

Product Description

The HILLMAN FASTENERS 47866 is a 75-pack of Power Pro Bronze Ceramic construction lag screws engineered for demanding outdoor and structural fastening applications. Each screw measures 1-1/2 inches in length by 1/4 inch in diameter and features a Type 17 cut point for self-starting entry into wood without pre-drilling in many applications. The coarse thread pattern with serrated shank provides aggressive holding power in dimensional lumber, treated wood, and composite materials. The bronze ceramic coating delivers a verified 1500-hour salt spray resistance rating, making these lags suitable for coastal, high-humidity, and pressure-treated lumber environments where standard zinc fasteners degrade quickly. Licensed contractors and experienced tradespeople install these in decking, framing, ledger attachment, and exterior structural connections.

These lag screws are suited for residential and light commercial construction where corrosion resistance is a code or performance requirement. Typical applications include deck ledger attachment to treated lumber, pergola and fence post connections, framing tie-ins in marine-adjacent environments, and exterior wood-to-wood structural fastening. The 75-count pack size supports production framing and finish crews working on multi-unit or repeat-detail installations. The star drive recess minimizes cam-out during high-torque driving compared to hex-head or Phillips configurations.

Key Features

• Bronze ceramic coating rated to 1500 hours of salt spray resistance for corrosion-prone environments
• Type 17 cut point enables self-starting penetration into wood framing and decking
• Coarse serrated thread pattern maximizes shear and withdrawal strength in lumber
• Star drive recess reduces cam-out during power driving
• 75-count pack designed for production installation efficiency
• Lifetime warranty coverage included

Compatibility

Designed as an OEM-style replacement and general-use lag screw for exterior wood construction applications requiring corrosion-resistant fasteners, including use with ACQ, CA, and other copper-based pressure-treated lumber where standard zinc-plated fasteners are not rated for long-term contact.

Installation Notes

Licensed carpenters, framers, and general contractors typically install structural lag screws under applicable building codes; consult local jurisdiction requirements and the IRC or IBC for minimum fastener schedules on ledger and shear connections. Pilot holes are recommended in hardwoods and at end-grain locations to prevent splitting and ensure accurate placement. Use a calibrated torque-limiting driver or impact driver set to an appropriate clutch setting to avoid overdriving and stripping the star recess. Do not substitute these fasteners in applications requiring engineer-specified hardware without confirming equivalency.