Hillman Fasteners 42485 Bronze Ceramic Exterior Screws 25 Pack

Product Description

The HILLMAN FASTENERS 42485 is a bronze ceramic-coated exterior screw designed for demanding outdoor fastening applications. At 3.5 inches long with a No. 10 shank, each screw features a self-drilling point that eliminates the need for a pilot hole in most wood substrates. The ceramic bronze coating is engineered to resist corrosion, having passed a 2000-hour salt spray test, making these screws well-suited for coastal, humid, and other high-moisture environments. A knurled shank section reduces splitting pressure as the fastener seats, protecting the surrounding material. These screws are sold in a 25-count box and are intended for installation by carpenters, general contractors, deck builders, and experienced DIYers.

These exterior screws are appropriate for residential and light commercial wood construction where long-term corrosion resistance is required. Typical applications include deck framing and decking, fencing, exterior trim, and structural wood connections exposed to weather. The star drive recess provides positive bit engagement and reduces cam-out during installation. The self-drilling tip is suited for softwood and many composite substrates without pre-drilling.

Key Features

• Bronze ceramic coating rated to 2000 hours of salt spray resistance for high-moisture and coastal environments
• Self-drilling point eliminates pilot hole requirements in most wood substrates
• Knurled shank section minimizes wood splitting during drive-down
• Star drive recess reduces cam-out and improves torque transfer
• Covered by a lifetime warranty from HILLMAN FASTENERS
• 25 screws per package for convenient jobsite use

Compatibility

Designed as an exterior-rated wood screw for use in softwood decking, fencing, framing, and trim applications requiring corrosion-resistant fasteners.

Installation Notes

These screws are installed by carpenters, deck builders, and general contractors using a star-tip (T-star) driver bit. Confirm bit size matches the drive recess before installation to avoid stripping. For hardwood substrates, a pilot hole may still be advisable to prevent splitting despite the knurled shank. Follow applicable building codes, including IRC framing fastener schedules, when using these screws in structural applications.