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 Würth #8 x 1-3/8 inch washer head assembly screw is built for cabinet assembly, furniture production, and panel joinery where a broad-bearing head, fast-driving turbo thread, and a lubricated finish are all working together. The 1-3/8 inch length threads fully into 3/4-inch material with meaningful embedment remaining, making it a natural fit for single-panel fastening and component attachment tasks that come up throughout a cabinet shop's production day.
At 1-3/8 inches, this screw is calibrated for tasks where a 1-1/4 inch screw would leave minimal embedment and a 1-1/2 inch screw would risk blowing through thinner stock or creating interference on the back face. In 3/4-inch sheet goods, the length provides solid thread engagement past the panel face while staying clear of the opposite surface. It handles attachment tasks like securing drawer runners to side panels, fastening hardware backing blocks, joining 3/4-inch carcass components at a gusset or cleat, and anchoring interior fixtures to cabinet boxes. For cabinet shops running mixed panel thicknesses, this length covers the single-thickness scenarios cleanly.
The washer head spreads clamping load across a wider footprint than a standard pan or flat head, which reduces the chance of the head sinking unevenly into particleboard or MDF surfaces under torque. The underhead nibs do the countersink work as the screw seats, milling the surface cleanly and helping the head land square without a separate prep step. That matters in melamine-faced panels where a standard head can chip the laminate surface during seating. The lubricated finish cuts thread friction on every revolution, which adds up to measurable time and bit-wear savings when the same screw is being driven hundreds of times across a production run. Together, these three details make the screw faster to install and cleaner at the finished surface than an unlubricated, plain-head alternative.
This screw belongs in cabinet manufacturing, furniture production, millwork, and commercial casework environments where assembly speed, consistent seating, and head appearance on interior surfaces all matter. The combo drive means a crew using square bits on a primary driver can still run Phillips if a backup tool is the only one at reach, without stopping to source a different screw. Production shops running particleboard and MDF carcasses will find the turbo thread and sharp point combination keeps screws starting and driving predictably across full shifts. For a homeowner-scale project, the 1,000-count box is more than most single builds will consume; this pack size is aimed at shops and installers who treat fastener inventory as a running supply rather than a one-project purchase.
The length leaves enough embedment past the panel face for solid thread engagement while keeping the tip well clear of the opposite surface in single-thickness applications. It bridges the gap between lengths that seat too shallow and lengths that risk breakthrough in thinner stock.
The washer head carries a larger-diameter bearing flange, spreading the clamping load over a greater surface area. In lower-density panels like particleboard, that wider footprint resists the head sinking under torque and reduces the risk of uneven seating in the finished surface.
The recess is designed to accept either a #2 Phillips or a #2 square bit. Square drive provides better cam-out resistance and is preferred for production driving; Phillips is available as a backup when that is the bit in hand. Both work in the same recess without swapping screws.
This screw has a sharp point and turbo thread, a combination that suits engineered panels, softwood, plywood, and similar materials. For hardwood face-frame work in maple, oak, or cherry, a fine-thread screw with a controlled point is the better match. Use this one where the substrate is particleboard, MDF, plywood, or softwood.
The lubricant reduces friction between the thread and the substrate on every drive cycle. In practice, that means lower torque demand per screw, less heat buildup at the bit interface, and reduced wear on driver bits over a long production run. The finish is dry to the touch, so it does not transfer to finished surfaces.
The sharp point is designed to self-start in particleboard, MDF, plywood, and softwood without pre-drilling. In dense or edge-proximate locations, a pilot hole can help prevent material movement, but the screw does not require one for typical panel assembly use.
When the job calls for a screw that seats cleanly, drives quickly, and holds securely in 3/4-inch sheet goods without stopping the line, the Würth #8 x 1-3/8 inch washer head assembly screw delivers on all three counts in a 1,000-count pack sized for real production volume.
Sold In: 1000 Each
