FastCap #8 x 3" Flat Head Wood Screw Square Drive - Type 17 Auger Point Coarse Thread Black, PH.BL.3"-150PC - 150/Box

Black Flat Head Wood Screw For Thick Stock and Deep Penetration

The FastCap #10 x 3-inch flat head wood screw is built for wood assembly work that demands full reach into thick material. The Type 17 auger point, coarse thread, and nibs under the flat head make this screw a reliable choice wherever a deeper bite and a flush finish matter.

Key Features

• 3-inch length with #10 gauge delivers deep thread engagement for thick-stock joinery and structural wood assembly.
• Type 17 auger point clears wood fiber with a fluted tip so the screw starts quickly and drives with less resistance in dense material.
• #2 square drive is designed to hold the screw on a correctly sized bit, reducing cam-out during high-torque driving.
• Coarse thread grips softwood, plywood, and sheet goods for reliable pull-out resistance in wood-to-wood joints.
• Nibs under the flat head mill a clean countersink as the screw seats, helping the head sit flush without a separate countersink step.
• Matte black finish suits applications where a dark, low-visibility fastener is preferred in the finished assembly.

Reaching Deep Into Thick Material

At 3 inches, this screw is sized for joints where shorter fasteners cannot get adequate thread engagement into the receiving member. Think cabinet carcass assemblies where panels stack thick, box-to-box connections in frameless cabinetry, or solid-wood joinery in furniture that needs a fastener with staying power across the full depth of the joint. The coarse thread works with the grain structure of softwood and engineered panels, pulling threads tight without the screw walking loose over time.

A Drive and Point Built for Dense Work

The Type 17 auger point carries a longitudinal flute that evacuates wood fiber ahead of the thread, reducing the torque needed to drive the screw through dense or layered material. That matters when driving a 3-inch fastener into a hard glue line or through a panel face into solid framing. The #2 square drive recess is designed to keep the bit engaged under that load. A correctly sized square bit seats into the recess with enough contact to transfer torque cleanly, which matters most on long screws where the driver is working hardest at full depth. The flat head with nibs finishes the job: the milling ridges cut a tidy countersink as the screw is driven, so the head ends up flush without prep work.

Where This Length Fits Best

Cabinet shops assembling thick panel constructions, furniture builders joining solid-wood components, and finish carpenters fastening into layered substrate all reach for a 3-inch fastener when shorter screws would leave too little thread in the second member. The black finish suits interiors where visible fastener heads should recede rather than stand out, including dark cabinet interiors, painted MDF casework, and furniture built with a matte finish. This is an indoor wood assembly screw; it is not rated for exterior or treated-lumber applications.

Common Questions

The Right Reach for Thick-Stock Wood Assembly

When the joint depth demands a fastener that goes the distance, this FastCap #10 x 3-inch black flat head screw combines the auger point, coarse thread, square drive, and nibs to drive cleanly, seat flush, and hold in solid wood and engineered panels.