Hillman Fasteners 48639 Ss Star Trim Screw 8x1-5/8 in 12pk

Product Description

The HILLMAN FASTENERS 48639 is a No. 8 x 1-5/8-inch stainless steel star drive trim screw built for exterior and interior finish work where corrosion resistance and clean installation matter. The 6-point star drive system eliminates cam-out, and serrated threads reduce drive torque to speed up installation. Four sharp countersinking blades seat the head flush without pre-drilling a countersink. A knurled shank section below the head resists splitting in wood trim and composite materials. Sold in a box of 12 screws. This fastener is appropriate for finish carpenters, general contractors, and experienced trim installers.

This screw is suited for attaching wood trim, composite trim boards, and similar finish materials in residential and light commercial construction. The sharp point penetrates without a pilot hole in most trim stock, and the coarse thread provides strong holding power in wood substrates. The stainless steel construction makes this screw a practical choice in coastal, humid, or high-moisture environments where standard steel fasteners would corrode and stain the finished surface.

Key Features

• 6-point star drive eliminates cam-out for cleaner installs
• Serrated threads reduce drive torque and minimize surface damage
• 4 sharp countersinking blades seat flush without a separate countersink step
• Knurled section below the head prevents splitting in trim stock
• Coarse thread for strong holding power in wood and composite substrates
• Stainless steel construction resists corrosion in moisture-prone environments

Compatibility

Designed as a trim fastener for wood and composite trim materials in residential and light commercial finish carpentry applications.

Installation Notes

Installation is typically performed by finish carpenters or general contractors using a star drive bit matched to the 6-point head. In most trim stock, no pilot hole is required, though pre-drilling near board ends reduces splitting risk. Confirm screw length is appropriate for the substrate thickness before driving. Follow applicable local building codes for fastener type and spacing in exterior applications.