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The Würth #8 x 2-1/4" flat head assembly screw is a production-ready fastener for cabinet construction, case goods, and general woodworking where the joint requires a screw that reaches fully through 3/4-inch or thicker material. The flat head seats flush, the Type 17 Auger point starts clean in dense stock, and the pail packaging keeps 2,500 screws accessible at the bench or on the floor of a busy shop.
At 2-1/4 inches, this screw is sized for joints that demand real thread depth in the receiving piece. When a screw passes through a 3/4-inch panel and into a rail, stile, or second panel, a shorter screw leaves thread engagement measured in fractions of an inch. This length delivers roughly 1-1/2 inches of thread into the mating part, which matters for face-frame-to-box attachment, shelf pin blocking, interior partition assembly, and carcass work where panels stack or cross. It is also a natural fit for joining two 3/4-inch panels edge-to-face in a dado or rabbet joint where the screw supplements glue. Cabinet shops building in volume will reach for this length often because it bridges the gap between the short hardware screws used at hinge and slide mounting and the longer fasteners reserved for structural ledger work.
The flat head carries underhead nibs that relieve wood fibers as the head pulls down, which allows the screw to countersink itself in hardwood, plywood, and MDF without pre-boring a separate taper. The result is a flush surface ready for veneer tape, edge banding, or paint. The Type 17 Auger point handles the entry: the auger flute clears chips ahead of the thread, cutting rather than wedging through the material grain. In harder domestic hardwoods such as maple and oak this reduces the risk of face checking near the screw hole. The coarse thread provides the clamping force once the screw is seated, drawing parts together and resisting pull-out as the joint is loaded in service.
A pail of 2,500 screws is sized for workplaces that go through fasteners in quantity. A cabinet shop running a week of production on kitchen or bath cases will move through hundreds of assembly screws per day, and stopping to open new boxes breaks momentum on the line. The pail format lets workers scoop from the bench without worrying about running low mid-run. Pail packaging is also convenient for movement around the shop or to the job site. For contractors installing pre-built cabinets on site, the same supply works for scribing, shimming, and blocking tasks that come up during a multi-cabinet install. The #2 Phillips drive needs no specialty bits, and because the drive matches the most common bit already in a drill/driver, the screw works across a mixed crew without tool changeovers.
A 2-1/4" screw passing through a 3/4-inch panel leaves about 1-1/2 inches of thread in the receiving piece. That depth provides substantially more pull-out resistance than a 1-1/4" or 1-1/2" screw in the same application, which matters when the joint will carry shelf load or door-hinge stress.
The nibs are small milling ridges on the underside of the flat head. As the screw seats, they cut and relieve wood fibers around the head, allowing it to countersink flush in solid wood, plywood, and MDF without a pre-drilled countersink. This saves a step in production assembly.
Yes. A standard sharp point displaces fibers as the screw enters. The Type 17 Auger point has a flute that cuts and clears material ahead of the thread, reducing the wedging pressure that causes grain checking or splitting, especially in denser hardwoods and thick engineered panels.
Yes. The coarse thread and Type 17 Auger point are suited to engineered panels including MDF, particleboard, and plywood. In these materials, coarse thread provides better pull-out resistance than fine thread because the deeper thread profile grips more material volume.
The black finish on this screw is a black oxide-style coating. It is suited to interior woodworking and cabinet assembly in dry environments. This screw is for indoor work; it is not rated for exterior or high-humidity applications.
When the joint needs a screw that reaches through the panel and holds deep in the receiving piece, the Würth #8 x 2-1/4" assembly screw delivers the thread engagement, flush-seating head, and clean-starting point to keep production moving without extra steps.
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) |