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This Würth #8 x 1-1/8 inch truss head machine screw is sized for attaching cabinet knobs, pulls, and decorative hardware to doors and drawer fronts. The 8-32 thread is the North American cabinet hardware standard, making it compatible with virtually all knobs and pulls sold in that market. The combination Phillips/slotted drive accepts either a #2 Phillips bit or a flat-blade driver, which is useful when working in tight spaces or with whatever tool is at hand.
Cabinet knobs and pulls are threaded onto machine screws that pass through a pre-drilled hole in the door or drawer front, then seat into the hardware post from behind. The 1-1/8 inch length covers a useful middle range: long enough to pass through a standard 3/4-inch door panel and still thread fully into the hardware post, with a small amount of adjustability for panels that vary slightly in thickness. This makes it a practical choice when installing hardware on face-frame cabinet doors, slab drawer fronts, or any panel near that thickness. For unusually thick panels or stacked material, a longer screw in the same family covers those situations.
The truss head sits low against the surface with a wider footprint than a pan or flat head, spreading the clamping force across the back plate of a knob or pull base. That broad bearing surface helps prevent the hardware from rocking or shifting once tightened. The zinc finish is appropriate for interior cabinetry in dry, climate-controlled spaces — kitchens, bathrooms, furniture, and millwork where moisture exposure is incidental rather than sustained.
Cabinet shops installing hardware across a full run of doors and drawer fronts will work through a box of 100 quickly. Finish carpenters and installers who carry a mixed hardware kit find the combination drive useful because it removes the need to swap bits when switching between installation positions. Homeowners replacing pulls or knobs on existing cabinetry often find that the 8-32 screw in the box with their new hardware has stripped or gone missing — a box of 100 covers the repair and leaves a supply for future changes.
8-32 is the thread standard adopted by North American cabinet hardware manufacturers. Because virtually all knobs and pulls sold in this market are tapped or fitted with posts to this specification, a single thread standard allows the screws to be interchangeable across brands and styles.
Yes. The 1-1/8 inch length is sized to pass through a 3/4-inch panel and leave enough thread to fully engage the hardware post. It also accommodates small variations in panel thickness that are common in production cabinetry.
The truss head has a larger-diameter, lower-profile bearing surface than a pan head. Against the back plate of a knob or pull base, that wider footprint distributes clamping load more evenly and reduces the chance of the hardware shifting after tightening.
No. The machine screw threads into the hardware itself — into a tapped post on a knob or into a nut on a pull — not into the wood panel. The panel just needs a clearance hole for the screw shank to pass through.
Zinc plating performs well in the typical dry-area bathroom environment — vanity cabinets, medicine cabinets, and linen storage. For applications near a shower or in a high-humidity laundry room, a stainless or coated fastener would be a more conservative choice.
A correctly specified machine screw is the last detail between a knob or pull and a finished door. This Würth 8-32 x 1-1/8 inch truss head screw keeps that detail covered across a full installation, with enough in the box to handle a complete cabinet project and the extras that come with it.
Sold In: 100 Each
