Order by 24/7 by web, contact our sales reps or call by phone.
What you need, when you need it, all in one place.
Most orders ship same day.
Advice and support from knowledgeable professionals.
The Fastcap #10 x 2-1/2 inch flat head Powerhead screw is a coarse-thread wood screw built for cabinet assembly, case construction, and general woodworking where the fastener needs to reach through thicker material and still pull the joint tight. The broad flat head with underhead nibs, Type 17 Auger point, and TX20 Torx drive work together to deliver a flush, clean result in solid wood, plywood, and engineered panel applications.
At 2-1/2 inches, this screw is sized for jobs where shorter fasteners run out of thread before the joint is tight. Laminated panels, doubled-up plywood substrates, thick cabinet sides, and through-panel connections into solid blocking all benefit from the added length. The screw passes through the near face with enough thread remaining to pull deep into the second member, creating a firm, stable joint. For cabinet shops assembling carcasses with thicker walls, installers attaching blocking through finished panels, or woodworkers joining stacked components, this length hits the range where a 2-inch screw comes up short and a 3-inch screw risks blowing through the back face.
The Powerhead name refers to the oversized flat head, which presents a larger bearing surface than a standard #10 flat head. When the screw seats, the wider head distributes the clamping force across more wood fiber, reducing the chance of pull-through in softer substrates or near panel edges. The underhead nibs do their work on the way in, milling the countersink as the screw descends so the head lands flush without a separate countersink operation in most materials. The Type 17 Auger point goes further than a standard Type 17 — its longer, more aggressive flute clears chips faster, which matters in thicker stock where chip buildup can stall the driver or raise torque to the point of splitting. Together, these features make the screw drive cleanly and seat completely in a single pass.
Cabinet shops building carcasses from 3/4-inch and thicker material, finish carpenters attaching nailers or blocking through plywood panels, and woodworkers joining face frames to thick cabinet boxes are the natural fit here. The TX20 Torx drive holds up well under repeated impact-driver use, which makes this screw practical on a production bench where the same motion happens dozens of times a shift. The zinc finish keeps the screw appropriate for dry interior work: kitchens, baths, built-ins, and shop-built furniture. This is an indoor screw; for exterior or pressure-treated applications, a corrosion-rated fastener is the right call.
Fastcap does not publish an exact head diameter in standard catalog data. The Powerhead designation indicates an oversized flat head that is larger than a standard #10 countersunk head, providing a broader bearing surface and better pull-through resistance.
Yes. The coarse thread and Type 17 Auger point are well suited to solid lumber, plywood, and common cabinet panel materials. The nibs help the flat head seat flush in these materials without a separate countersink step in most cases.
The TX20 Torx drive requires a T20 star drive bit. This is a common size in most bit sets used in cabinet and construction work.
The Auger variant has a longer, more aggressive flute than a standard Type 17 point. That extended flute clears wood chips faster, which is most noticeable in thicker stock where chip buildup can increase driving torque or cause splitting.
No. The zinc plating on this screw is suited for dry interior environments. Exterior work or pressure-treated lumber requires a fastener with a corrosion-rated coating compatible with those conditions.
When the joint calls for more than 2 inches and a clean countersunk finish still matters, this Fastcap Powerhead screw delivers the length, the head geometry, and the drive engagement to get the job done in one pass.
Sold In: 1 Box