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The Würth #8 x 2-3/8" Flat Head ASSY Screw is built for cabinet assembly, casework, and woodworking applications where the fastener needs to travel through substantial material thickness and still seat cleanly. The fine thread, drill point, milling nibs, and RW20 drive work together to reduce splitting, lower driving resistance, and deliver a flush countersink in hardwoods, softwoods, laminates, and engineered panels.
At 2-3/8", this screw is sized for situations where a shorter fastener would fall short of full engagement. Joining a face frame to a cabinet box through combined stock, fastening through a laminated panel assembly, securing a rail into thick carcass material — these are jobs where thread engagement depth matters and a screw that bottoms out early leaves holding power on the table. The fine thread is particularly well matched to dense hardwoods like maple and oak, where a coarse thread can strip before reaching full seating depth. The drill point starts the screw cleanly and clears chips as it penetrates, which is especially useful when driving close to a panel edge where splitting pressure builds quickly.
The flat head with milling nibs handles its own countersink without a separate prep step. As the screw seats, the nibs mill the surface material and collect chips so the head drops flush in hardwood, softwood, and melamine-faced panels. The RW20 drive recess offers a deeper, broader bit contact area than standard drive styles, which translates to more torque on the screw and less wear on the bit during high-volume fastening runs. The zinc finish makes this screw at home in interior cabinet shops and dry production environments. A compatible bit is included in the box.
Cabinet shops assembling face-frame-to-box joints in hardwood, millwork teams working through stacked laminate, and installers setting cabinet components into thick backing material will find the 2-3/8" length covers the applications where the rest of the family falls short. The 250-piece box keeps the bench stocked through a production run without constant restocking. This is an interior fastener best suited for dry, climate-controlled environments.
Fine thread engages more thread per inch in the material, which improves holding power and reduces stripping in dense hardwoods like maple and oak. Coarse thread is generally the better choice for softwoods and low-density engineered panels, but fine thread is the right call when the material is hard and the joint needs to stay tight under load.
In many applications it does. The drill point cuts its own entry hole, removes chips, and helps prevent splitting as it penetrates. Whether pre-drilling is needed depends on the material density, edge distance, and stock thickness — but the drill point handles a wide range of cabinet and casework scenarios without it.
An RW20 bit. A compatible bit is included in every 250-piece box. The RW20 recess has a larger contact surface than most standard drive profiles, which helps the bit stay engaged under torque and extends bit life in repetitive driving work.
No. The zinc finish is rated for dry interior environments. For exterior work or pressure-treated lumber, a screw with a corrosion-resistant coating rated for outdoor exposure is the correct choice.
The longer shank reaches through thick laminated assemblies, combined face-frame and cabinet-box stock, and stacked panel materials where a 1-3/4" or 2" screw would not achieve full thread engagement in the receiving piece. If the joint involves substantial total thickness, this length ensures the thread bites deep enough to hold.
When the stock is thick, the material is hard, and the joint needs to hold, the 2-3/8" ASSY screw with fine thread and drill point is the right tool — not a compromise made from whatever length was already on the shelf.
Sold In: 250 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 10 Each |  WW06147020 Mfr# 061470 20 961 10 | RW20 ASSY Insert Drive Bit |
