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The Würth #8 x 1-1/4" flat head assembly screw is sized for the most common cabinet and casework joint: two pieces of 3/4-inch material. A Type 17 Auger point, coarse thread, flat head with nibs, and a combo Phillips/square drive give this screw the right geometry for clean, flush seating in softwood, plywood, MDF, and particleboard without pre-drilling a countersink.
At 1-1/4 inches, this screw reaches through one 3/4-inch panel and bites solidly into the second, which makes it a practical default for cabinet box assembly, face-frame attachment, shelf-pin backer strips, and drawer-bottom installations. The coarse thread grips the fiber structure of plywood and MDF well, and the flat head with nibs seats cleanly into the face veneer or laminate surface without requiring a pre-drilled countersink. For shops building box after box, that saved step adds up quickly across a run.
The screw is zinc-plated carbon steel, suited for dry interior work in cabinet shops, millwork facilities, and residential installs. The combo drive recess accepts both a #2 Phillips bit and a #2 square bit, so drivers do not need to be switched when the job moves from bench to site or when different crew members have different bits on hand. The square recess is designed to hold the screw on a correctly sized bit for one-handed placement during installation. Nibs on the underside of the flat head cut into the wood surface as the screw seats, milling a countersink in-place and pulling the head flush without tearing the face material.
Cabinet shops running production will reach for this length most often when assembling 3/4-inch plywood carcasses, tacking face frames to box sides, or securing backing panels. Finish carpenters and installers use this size when anchoring trim components or light hardware blocking where a longer screw would over-penetrate. The 1,000-count box keeps the bench stocked through a full kitchen run without a mid-project reorder. This is an indoor screw: the zinc finish is appropriate for climate-controlled shops and finished interiors, not for exterior or high-moisture environments.
Not in most softwoods, plywood, MDF, or particleboard. The nibs on the underside of the flat head mill their own countersink as the screw seats, so the head sits flush without a separate countersink step. In very hard, dense hardwoods, a pilot countersink is still good practice to avoid surface tear-out.
The Type 17 Auger point has an extended flute near the tip that cuts and clears wood fibers as the screw starts. It reduces the torque needed to drive the screw and lowers the risk of splitting near the entry point, which matters most when fastening close to an edge or in dense sheet material.
Yes. The combo recess accepts a standard #2 Phillips bit or a #2 square bit. The square recess transfers torque more efficiently and is designed to hold the screw on a correctly sized bit, but either bit works in the same head.
Yes. The coarse thread pulls well through MDF and particleboard, and the Type 17 Auger point helps the screw start without pushing a plug of material ahead of it. Drive speed matters in these substrates: a controlled, steady pace reduces the risk of stripping the hole near the surface.
This screw has a zinc finish rated for dry interior use. It is not intended for exterior, high-humidity, or pressure-treated lumber applications.
When the job is 3/4-inch cabinet joinery and the priority is clean seats, flexible bit options, and a box count that keeps pace with a full production run, this #8 x 1-1/4" Würth assembly screw delivers all three.
Sold In: 1000 Each
