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The Würth #8 x 3 inch flat head assembly screw is built for wood-to-wood fastening where reach matters. Its 3-inch length gives it the thread engagement needed to pull thick stock together or span a deeper panel joint, and the combination drive, flat head with nibs, and Type 17 Auger point make it a dependable choice for cabinet shops and production woodworkers who need consistent results across a full box run.
At 3 inches, this screw reaches further than the 1-1/2 and 2-inch variants used for lighter joinery. That extra length is useful when you are fastening through a thick panel into a second member, anchoring a nailer or cleat to a carcass side, or securing cabinet components where you need meaningful thread depth in the receiving piece. The coarse thread and Type 17 Auger point work together to move through the full shank without requiring excessive driver pressure, even in denser softwoods and engineered lumber.
The flat head seats flush when driven into a countersunk hole, and the milling nibs on its underside cut through wood fibers as the head approaches the surface — a practical advantage in production work where pre-countersinking every hole adds time. The black finish is a straightforward choice for applications where the screw head will be visible: dark cabinet interiors, face frames finished in a dark stain, or painted surfaces where a zinc-silver head would break the visual line.
A box of 2000 keeps a busy cabinet shop or millwork crew stocked through an extended run without counting out smaller quantities. The combination drive means operators are not forced to stop and swap bit types mid-job; a #2 square or a #2 Phillips both seat cleanly in the same recess. This screw suits shops assembling cabinet boxes, face frames to carcasses, and structural interior panels where a longer fastener is specified.
Yes. The combination recess accepts both a #2 Phillips and a #2 square bit. Either drive style will seat the screw; the square drive tends to hold better on the bit for one-handed placement when using a correctly sized bit.
The Type 17 Auger point has an extended flute near the tip that clears wood fibers as the screw is driven. In thick or dense stock — which a 3-inch screw typically encounters — that chip-clearing action reduces driving torque and lowers the chance of splitting near the end of the joint.
In most wood-based materials, the nibs mill a clean countersink as the head seats, so a separate countersink operation is not required. In very hard hardwoods or thin laminates, a light pre-countersink can still improve the finished appearance.
The black finish on this screw is for interior woodworking and cabinet assembly. For exterior or treated-lumber applications, choose a screw with a corrosion-resistant coating rated for outdoor exposure.
Coarse thread performs well in solid softwoods, pine, plywood, OSB, and engineered lumber. For hardwood face frames where the thread must resist splitting tight grain, a fine-thread screw is typically the better match.
When a longer reach is what the joint calls for, the Würth #8 x 3 inch combo drive assembly screw delivers the thread engagement, clean seating, and production-friendly box count to keep the work moving.
Sold In: 2000 Each
