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The Würth #8 x 1-1/2" flat head assembly screw is a production-ready fastener for cabinet boxes, carcass assembly, and panel joinery where a flush-seating, coarse-thread screw is the right call. The combo drive recess accepts either a #2 Phillips or a #2 square bit, the Type 17 Auger point cuts cleanly into the wood to reduce driving torque, and the underhead nibs mill a seat in the material as the head sets — no separate countersink step required in most cabinet substrates.
At 1-1/2 inches, this screw reaches through a 3/4-inch panel and seats solidly into a second member — a common stack in cabinet box assembly. It works well for attaching cabinet backs to side panels, connecting shelf nailers to box sides, joining top and bottom panels to case sides, and other flat-to-flat connections in frameless or face-frame casework. The length also suits drawer box assembly in 1/2-inch Baltic birch or similar sheet goods where a shorter screw would under-penetrate and a longer one would blow through. Production shops that run a lot of box assembly at a standard panel thickness tend to keep this length stocked in volume, which is why it packs 7,000 to the box.
The black finish on this screw is a functional choice in cabinet interiors where visible fastener heads are undesirable. Dark cabinet boxes, painted plywood interiors, and melamine-lined cases all benefit from a screw that recedes rather than reflects. The flat head with underhead nibs contributes to a clean installed appearance: the nibs cut into the substrate as the head approaches the surface, producing a milled countersink that lets the head seat flush without a separate prep operation. That matters most in production settings where drilling and driving happen in a single pass.
Cabinet shops assembling production runs of frameless or face-frame boxes are the primary user. The 7,000-piece box quantity is sized for shops burning through fasteners at volume rather than for a single-job purchase. Installers building site-built cabinetry or custom millwork will also find the length and gauge appropriate for connecting components on the bench before install. The combo drive is particularly useful in environments where operators may be using different tools — Phillips drivers on some stations, square-drive drivers on others — since the same screw runs in both without a bin change. For anyone who has had production slow down over a bit mismatch, that flexibility has real value.
This screw has a coarse thread, which is suited to softwood, plywood, MDF, and similar cabinet substrates. Coarse-thread screws can split tight-grained hardwoods like maple and oak in face-frame applications. For hardwood face frames, a fine-thread face-frame screw is the better choice.
Yes. The combo recess accepts a #2 Phillips driver or a #2 square driver. Either bit engages the same recess, so there is no need to stock two different screws for stations running different drivers.
The underhead nibs are designed to mill a countersink as the head seats, so a separate countersink step is not required in most cabinet-grade wood, plywood, and softwood panels. In very hard or brittle materials, a pilot countersink may improve the result.
No. The black finish on this screw is suited to indoor cabinet and woodworking applications. For outdoor or high-moisture environments, choose a screw with a corrosion-resistant coating rated for exterior exposure.
The Type 17 Auger point has an extended flute near the tip that clears wood fibers as the screw is driven, reducing the torque needed to penetrate the material and helping the screw start cleanly without excessive pressure.
The Würth #8 x 1-1/2" flat head assembly screw gives cabinet shops a dependable everyday fastener for box assembly — a combo drive that keeps production moving regardless of which bit is in the gun, a Type 17 Auger point that reduces driving effort, and a flush-seating flat head with milling nibs that finishes clean in a single pass.
Sold In: 7000 Each
