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The Würth #8 x 1-3/8" truss head machine screw is an 8-32 fine-thread fastener sized for attaching knobs, pulls, and other decorative hardware to drawer fronts and cabinet doors where the combined material thickness calls for a longer reach than a standard 1" or 1-1/4" screw provides.
Hardware installers encounter a range of door and drawer front thicknesses across a single project. A standard 3/4" panel paired with a thicker overlay, a double-layer drawer front construction, or a door with a decorative insert can push the required screw length past what a 1" or 1-1/4" screw reaches. At 1-3/8", this screw threads fully through those combined thicknesses and engages the hardware shank on the opposite side without bottoming out short or protruding excessively. The truss head's wide bearing flange sits cleanly against the inside face of the panel, pulling the hardware tight without digging into the surface.
The zinc plating on this screw is suited for interior cabinetry, where humidity stays moderate and the fastener is tucked behind the door or inside the drawer box. The truss head is wider and lower in profile than a standard pan head, which matters when mounting hardware in recesses or against finished interior surfaces where a tall head would stand proud. The 8-32 fine thread engages the tapped hole in the hardware fitting precisely, and the blunt point seats without wandering or cross-threading when aligned correctly.
Cabinet installers working through a production kitchen or bath job keep a box of these on the cart alongside the hardware bags. The combination Phillips/Slotted recess means the installer is not hunting for a specific bit when the work pace is high. Designers specifying hardware on thick panel constructions or layered drawer fronts note the 1-3/8" length when ordering hardware screws to ensure the screw reaches through the stack. Homeowners swapping out pulls on painted or retrofitted cabinet fronts that run thicker than standard also find this length bridges the gap that shorter screws leave unseated.
When the door or drawer front is thicker than standard, whether from a double-layer construction, a thick overlay, or a decorative insert, a shorter screw may not reach through the panel to engage the hardware knob or pull fully. The 1-3/8" length provides the additional reach to thread completely into the hardware shank in those situations.
8-32 is the industry standard thread for decorative cabinet hardware in North America. Most knobs, pulls, cup pulls, and bar handles from domestic and imported hardware brands are tapped to 8-32, so this screw fits without any thread adapter.
The truss head has a wider diameter than a standard pan head but a lower profile, so it spreads the clamping load across a larger surface area on the back of the cabinet door without creating a high protrusion that could interfere with the drawer box or cabinet interior.
Yes. The combination recess accepts a #2 Phillips bit. Keep torque moderate when seating hardware screws: the goal is to pull the hardware snug against the face without stripping the tapped hole in the knob or pull.
The zinc finish is appropriate for standard dry interior cabinetry. For outdoor furniture, wet-area vanities with high humidity, or any application with regular moisture exposure, a stainless steel machine screw is the better choice.
Choosing the correct machine screw length is what keeps hardware mounted flat, tight, and looking finished. This 1-3/8" 8-32 truss head screw covers the thicker panel situations that come up in real installation work, so the hardware seats the way it should the first time.
Sold In: 100 Each
