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This Würth #8 x 7/8-inch truss head machine screw is built for attaching cabinet knobs, pulls, and decorative hardware where a low-profile head and a compact overall length keep the fastener clear of shallow door or drawer constructions. The 8-32 fine thread is the industry standard for North American cabinet hardware, so it threads directly into knobs and pulls without adaptation.
At 7/8 inch, this screw is sized for situations where a full 1-inch or longer machine screw would protrude past the back face of the door or drawer front, or conflict with an internal drawer component. Thin slab doors, single-layer drawer fronts, and overlay panels in the 5/8-inch to 3/4-inch range are common fits. The screw passes through the panel and threads into the knob or pull base with just enough engagement to seat the hardware firmly without bottoming out or pushing through on the back side.
The truss head sits low and wide against the back face of the door panel, spreading the clamping load so the screw pulls the hardware tight without dimpling or concentrating stress on a single point. The zinc finish holds up in the dry interior environments typical of kitchen, bath, and furniture cabinet work. The combination Phillips/slotted recess means the same screw is accessible with whatever driver is at hand on the install, whether that is a powered Phillips bit or a hand flat-blade for a final quarter-turn of adjustment.
Cabinet installers hanging hardware on thin overlay doors will find the 7/8-inch length eliminates the mental math of whether a standard 1-inch screw will clear the inside face. Furniture makers attaching hardware to single-thickness panels get a clean install without recutting holes or shimming. For a production shop pulling hardware from a bin and driving screws all day, the 1,000-piece box keeps the supply ahead of the pace. The 8-32 thread means no sorting by hardware brand — the same box works across the full range of standard knobs and pulls on the job.
The truss head is wider and lower in profile than a pan head. That wider bearing surface spreads clamping load across a larger footprint on the back of the door panel, which is useful when the panel material is softer or when the hardware's mounting hole is oversized relative to a standard pan head.
Yes, for most standard knobs and pulls. The screw passes through the 3/4-inch panel and threads into the hardware base. How much thread engages the hardware depends on the knob or pull's threaded depth, but 7/8 inch is a common choice specifically because it provides engagement without excess length on the back side.
Yes. The combination recess accepts a standard #2 Phillips bit. For final seating on decorative hardware, a hand driver gives better feel for when the hardware is snug without over-torquing a knob base.
8-32 is the North American cabinet hardware thread standard. The large majority of knobs and pulls sold in the North American market are tapped to 8-32, so this screw fits them without any special sourcing or adaptation.
The zinc finish is appropriate for dry indoor cabinet and furniture installations. For hardware in high-humidity spaces or exterior applications, a stainless or coated fastener is the better choice.
A machine screw that is the right length, the right thread, and the right head style for the panel in front of you removes every small friction point from a hardware install. The 7/8-inch Würth truss head machine screw is that screw for thin doors and single-panel drawer fronts where a longer fastener would create more problems than it solves.
Sold In: 1000 Each
