The Würth #8 x 1-1/4" flat head assembly screw is a coarse-thread fastener built for joining and assembling cabinet components in 3/4-inch material. The 1-1/4" length lands this screw squarely in the range used for cabinet box assembly, face frame attachment, and panel joinery in softwood, plywood, and similar sheet goods.
At 1-1/4", this screw is proportioned for 3/4-inch stock. That dimension comes up constantly in cabinet production: assembling box panels, tacking face frames to cabinet boxes, and attaching backs and dividers. The length provides thread engagement through the full thickness of one panel and into the adjoining piece without over-penetrating or breaking through the far face. For shops building frameless or face-frame cabinets in plywood or particleboard, this is a workhorse size that handles a wide range of routine assembly joints.
The Type 17 auger point starts quickly in wood and sheet goods, pulling material out of the flute rather than compressing it. This matters in particleboard and MDF, where compressed fibers around the entry point reduce holding strength. The coarse thread follows with broad contact in the fibrous matrix of softwood and engineered panels. As the screw seats, the nibs under the flat head mill a clean countersink so the head finishes flush without pre-drilling a separate chamfer. The black finish blends into dark panel interiors and melamine surfaces where a bright zinc screw would stand out.
This screw is most at home in a cabinet shop running consistent production on frameless or face-frame boxes. The #2 Phillips drive is the most widely available bit size, so no special tooling is required. Coarse thread is the right choice here: these panels are softwood plywood, particleboard, or MDF, not hardwood, and coarse thread outperforms fine thread for pull-out resistance in those materials. The 1,000-piece box keeps the bin stocked through a full production run. For shops that maintain a small number of go-to screw sizes to cover the majority of assembly tasks, the #8 x 1-1/4" is a natural anchor in that set.
Yes. The coarse thread is designed for engineered wood panels including particleboard, MDF, and softwood plywood, where its wider thread pitch grips the fiber matrix effectively. The Type 17 auger point also reduces the compression that can occur when a standard sharp point is driven into these materials.
Not in most wood-based panel materials. The nibs on the underside of the flat head mill their own countersink as the screw seats. This saves a step in production assembly and produces a flush head result in softwood, plywood, and similar substrates.
Coarse thread provides better pull-out resistance in low-density materials like particleboard, MDF, and softwood plywood. Fine thread is the better choice for hardwood face frames. For general cabinet box assembly in engineered panels, coarse thread is the standard specification.
This is a coarse-thread screw, which performs best in softwood and engineered panels. For hardwood face frames in maple, oak, or cherry, a fine-thread face frame screw is the appropriate choice. Using a coarse-thread screw in dense hardwood risks splitting the stock.
The black finish on this screw is suited for dry indoor applications. It keeps the fastener visually inconspicuous in dark cabinet interiors, but it is not rated for exterior or high-humidity environments.
The Würth #8 x 1-1/4" Phillips assembly screw delivers consistent, flush-seating results in the panel materials that make up the majority of cabinet production, without adding extra steps or special tooling to the process.
Sold In: 1000 Each
