Hillman Fasteners 48457 Composite Deck Screw 2.5in No.10

Product Description

The HILLMAN FASTENERS 48457 is a No. 10 by 2.5-inch exterior composite deck screw engineered for fastening composite and wood decking in outdoor environments. The red ceramic coating provides corrosion resistance rated to 1500 hours of salt spray testing, making it well suited for coastal and high-moisture installations. A self-drilling cut point eliminates the need for pre-drilling in most composite decking materials. The dual-thread design pulls the board tight to the joist while reducing surface mushrooming. Installation is driven by a star drive recess, which improves bit engagement and reduces cam-out under power tool torque. This fastener carries a lifetime warranty from the manufacturer.

The 48457 is intended for residential and light commercial deck construction and repair using composite or treated wood decking boards. The ceramic-coated finish resists the tannin staining and corrosive reactions common when standard fasteners contact pressure-treated lumber or composite materials. Deck builders and carpenters working on exterior framing, decking, and dock applications will find this screw appropriate for above-ground use where long-term corrosion resistance is required. Each box contains 12 units.

Key Features

• Red ceramic coating rated to 1500 hours of salt spray corrosion resistance
• Self-drilling cut point for installation without pre-drilling in composite decking
• Dual-thread design pulls decking tight and minimizes surface mushrooming
• Star drive recess reduces cam-out under high-torque power tools
• Lifetime manufacturer warranty
• Packaged 12 units per box

Compatibility

Designed as an exterior composite and wood deck fastener suitable for above-ground residential and light commercial decking applications where corrosion-resistant No. 10 screws are specified.

Installation Notes

This fastener is installed by deck builders and carpenters using a star drive bit under drill or impact driver. Verify the composite decking manufacturer's fastener specification before installation, as some composite products require hidden fasteners or specific screw profiles. Use only in above-ground exterior applications as rated. Follow applicable building codes and deck construction standards for fastener spacing and penetration depth.