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The Würth #8 x 1-3/4 inch flat head assembly screw is a coarse-thread, sharp-point fastener with a lubricated finish and #2 square drive, designed for cabinet construction, casework, and general wood assembly where 1-3/4 inches of penetration matches the joint.
At 1-3/4 inches, this screw reaches comfortably through one layer of 3/4-inch sheet material and into a second, making it a natural fit for panel-to-panel joints in cabinet carcass construction. It also works well where a face component meets a thicker substrate and you need more thread engagement than a 1-1/2 inch screw provides, but the joint geometry does not call for a full 2-inch fastener. For shops assembling upper and lower cabinet boxes from 3/4-inch plywood or melamine-faced particleboard, this length hits a useful middle point: enough penetration to hold the joint firmly without breaking through the back panel of a shallow member.
The lubricated finish is dry to the touch and reduces thread friction during driving. In a production environment where the same screw goes in hundreds of times a day, lower driving torque translates to less heat buildup on bits, reduced motor strain on drivers, and a lower chance of head strip-out at the recess. The #2 square drive supports that efficiency. The square socket geometry keeps the bit seated under load, which matters most when driving at an angle or working in tight cabinet interiors where bit slip causes rework. Together, the lubrication and drive style are matched to the pace of a cabinet shop rather than occasional light assembly.
Cabinet shops running production volume in softwood, plywood, MDF, or particleboard will get the most from this screw. The coarse thread and sharp point are calibrated for those materials, and the 4,000-count box keeps the bin full through an extended run. The flat head suits any application where the fastener needs to sit flush, including interior cabinet panels where a proud head would interfere with a drawer box or shelf. This is an indoor fastener. The lubricated finish provides no corrosion protection for exterior or wet-area applications, so keep it on interior casework and dry shop assembly.
This screw uses a coarse thread and a sharp point, which are suited to softwood, plywood, MDF, and particleboard. For hardwood face frames in maple, oak, or cherry, a fine-thread screw with a Type 17 point is the better choice because coarse threads and sharp points can split tight-grained hardwood under torque.
Yes. A flat head is a countersunk profile and needs a matching countersink to sit flush. In softer materials like MDF or particleboard the head will self-sink to some degree, but for a clean, flush result in plywood or harder panels, pre-drill a countersink to the head diameter.
A #2 square drive bit. The square recess is designed to hold the screw on a correctly sized bit for one-handed placement, which helps in tight cabinet interiors where repositioning the bit wastes time.
No. The lubricated finish is a friction-reduction coating, not a corrosion barrier. This screw is for dry indoor work. For exterior or treated-lumber applications, choose a screw with a corrosion-rated coating such as hot-dip galvanized or a manufacturer-rated exterior finish.
The sharp point self-starts in softwood, plywood, MDF, and particleboard without a pilot hole in most cases. Edge distances and material density affect the result, so a pilot hole is worth the extra step when fastening close to a panel edge or in denser composite stock.
When the joint calls for 1-3/4 inches and the material is softwood or engineered panel, this Würth assembly screw delivers the right thread, the right drive, and the friction-reducing finish to keep the line moving.
Sold In: 4000 Each
