Hillman Fasteners 48623 Stainless Exterior Screw 3in X 10

Product Description

The HILLMAN FASTENERS 48623 is a stainless steel exterior screw engineered for demanding outdoor fastening applications. Part of the Power Pro line, this screw features a self-drilling point that eliminates the need for pre-drilling in most applications, speeding up installation on decks, fences, and exterior trim. The Star Borefast thread design reduces driving torque and pulls material tight for a secure hold. A knurled shank section below the head prevents splitting in wood, making it well-suited for composite and hardwood decking. Each box contains 12 screws at 3 inches in length and a number 10 diameter.

These screws are designed for exterior wood-to-wood and wood-to-composite fastening in residential and light commercial construction. Typical applications include deck boards, exterior cladding, fencing, and outdoor trim work where corrosion resistance is a primary concern. The 2000-hour salt spray rating makes them appropriate for coastal and high-humidity environments where standard zinc or galvanized fasteners may fail prematurely. Licensed carpenters, deck builders, and general contractors regularly specify this type of stainless fastener for code-compliant exterior assemblies.

Key Features

• Self-drilling point eliminates pre-drilling in most exterior wood applications
• Star Borefast thread reduces driving torque and improves pull-through resistance
• Knurled shank section below head prevents wood and composite splitting
• 2000-hour salt spray rating for corrosion resistance in coastal or humid environments
• Stainless steel construction for long-term outdoor durability
• Lifetime warranty coverage included

Compatibility

Designed as an OEM-style replacement and general-use exterior fastener suitable for wood decking, composite decking, fencing, and exterior trim assemblies requiring a number 10 diameter stainless screw.

Installation Notes

Installation is performed by carpenters, deck builders, or general contractors using a star-drive bit matched to the fastener head. Always verify that the selected screw length provides adequate penetration into the receiving member per applicable building code requirements. Avoid overdriving, which can strip the drive recess or countersink too deeply into composite materials. Use stainless steel fasteners exclusively when working with pressure-treated lumber containing copper-based preservatives to prevent accelerated corrosion from dissimilar metal contact.