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This Würth #8 x 2-1/2 inch flat head assembly screw is built for cabinet and casework applications where the fastener needs to reach through a panel, ledger, or thick substrate and still grip deep into the receiving member. The coarse thread, Type 17 Auger point, Phillips drive, and underhead nibs work together to deliver clean, flush installation in wood-based materials.
At 2-1/2 inches, this screw spans situations that shorter assembly screws cannot reach. Driving through a 3/4-inch panel into a solid wood rail or stile leaves roughly 1-3/4 inches of thread embedded in the receiving member, which is enough engagement for a strong, lasting joint. The same length handles attaching cleats, nailers, or backing boards to cabinet boxes where combined material thickness pushes past the range of shorter screws. For cabinet installers fastening boxes to wall studs through a finished panel or filler strip, the extra length closes the gap without switching to a different fastener family.
The Type 17 Auger point is an extended fluted tip that begins clearing material before the thread engages. In denser woods and thicker panels, that chip-clearing action lowers the torque needed to drive the screw fully, which protects both the material and the driver head. The coarse thread follows with wide spacing that grips wood fibers efficiently and resists pull-out under load. As the flat head approaches the surface, the underhead nibs cut into the wood and mill a clean countersink, so the head seats flush without tearing the face or requiring a pre-bored relief. The result is a screw that starts fast, drives clean, and finishes flush in one uninterrupted motion.
Cabinet shops building and installing in volume need a screw that behaves consistently across an entire production run. The pail format keeps 2,500 screws accessible on the bench or at the job site without constant restocking. A #2 Phillips bit is already on every driver in most shops, so there is no bit-change interruption. The black finish keeps fastener heads visually quiet inside dark cabinet interiors where a silver head would draw the eye. This screw is best suited for interior woodworking, cabinet assembly, and casework installation in dry conditions.
Driving through a single 3/4-inch panel leaves approximately 1-3/4 inches of thread in the receiving member, which gives solid withdrawal resistance in most wood substrates.
No. The nibs mill their own countersink as the head seats, so the screw can reach a flush finish in most wood-based materials without a separate countersink step.
Yes. The 2-1/2 inch length is well matched to reaching through a finished panel or cabinet back and into a wall stud, making it a practical choice for cabinet installation work.
The Type 17 Auger point has an extended fluted tip that clears wood fibers before the thread engages. This reduces driving torque and lowers the risk of splitting in thicker or denser stock compared to a standard sharp point.
Yes. The black finish is suited for dry interior applications. It is not rated for exterior exposure, treated lumber, or high-moisture environments.
When the job calls for a reliable #8 assembly screw that reaches through thick stock, seats flush without prep work, and keeps pace with high-volume cabinet building and installation, this 2-1/2 inch Würth pail delivers it.
Sold In: 2500 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 10 Each |  WW614176461 Mfr# 0614176461005 10 | #2 x 1" Phillips Drive Insert Bit (10/Bag) |