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The Würth #8 x 2-1/2" flat head assembly screw is a coarse-thread, sharp-point screw for wood panel and cabinet carcass work where extra penetration depth is the priority. The black finish keeps fastener heads unobtrusive in finished interiors, and the box of 2500 supports steady shop volume without frequent reorders.
Most cabinet carcass work runs on shorter screws, but certain joints call for more reach. Attaching a back panel that runs through a thicker gusset, pulling a cabinet side through a face frame into a secondary layer, or drawing a shelf cleat tight against a stacked-panel wall all benefit from the extra depth a 2-1/2" screw delivers. The coarse thread bites quickly through each layer, and the flat head sits flush so there is nothing proud of the surface to interfere with adjacent hardware or trim.
The black finish is a practical choice for cabinet interiors, painted casework, and any assembly where a silver screw head would stand out against a dark substrate. It is an indoor finish suited for the dry environments where cabinet and furniture assembly happens. The #2 Phillips drive is the default for most production screw guns and hand drivers, which means no bit changes mid-run when this screw is part of a larger assembly sequence alongside other Phillips hardware.
A 2500-count box is sized for cabinet shops, millwork operations, and production woodworking teams that run assembly screws in volume. A single run of kitchen cabinets can move through hundreds of fasteners, and having a full box on hand removes the friction of running short mid-project. The 2-1/2" length is specific enough that it handles a defined set of joints, so this box makes sense as a dedicated stock item alongside your shorter-length assembly screws rather than as a general-purpose substitute for them.
The sharp point self-starts in most wood-based panels including plywood, MDF, and particleboard without a dedicated pilot hole. In solid hardwood or near thin edges, a pilot hole helps prevent splitting and is worth the extra step.
In softer panel materials like MDF and particleboard, the flat head will typically self-countersink as it seats. In harder substrates or laminate-faced panels, a countersink bit keeps the head from standing proud.
The black finish holds up well in dry indoor environments. It is not rated for exterior or high-humidity applications, but for finished cabinet interiors it provides adequate protection and keeps the screw head visually unobtrusive.
The 2-1/2" length adds thread engagement when fastening through multiple panel layers, attaching back panels through thicker material, or drawing a cleat tight against a stacked-panel substrate. For single-panel joints, a shorter screw is usually the better fit.
Yes. The #2 Phillips drive works with standard screw guns, drill drivers, and impact drivers. Set the clutch or torque to avoid overdriving the flat head below the surface in softer materials.
When the joint calls for more depth than a standard cabinet screw delivers, this Würth #8 x 2-1/2" flat head assembly screw gives production shops a dependable, flush-seating option in a black finish, packed at the volume that keeps the line moving.
Sold In: 2500 Each
