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The Würth #8 x 3-inch flat head assembly screw is built for wood-to-wood connections where the joint runs through thicker material or where deep thread engagement is the priority. A Type 17 auger point, coarse thread, Phillips drive, and flat head with nibs work together to seat cleanly and hold firmly across cabinet carcasses, solid lumber, and structural panel assemblies.
Most cabinet and casework assembly screws run between 1 and 2 inches because the stock they join is thin. The 3-inch length serves a different set of jobs. When fastening through a face frame and into a cabinet side that sits behind it, or when pulling together stacked panel sections, or when anchoring a heavy carcass component that needs thread running deep into the receiving member, shorter screws simply do not reach. The 3-inch length puts thread engagement well past the joint line, which is where holding power actually comes from. It is also the right call when building or securing cabinet backs to thicker solid-wood frames, joining doubled-up panels at corners, or driving into a location where you need the screw to anchor in fresh, undisturbed material rather than near the surface.
The Type 17 auger point has a longitudinal flute that evacuates wood fiber as the screw enters, which matters in denser materials where a plain sharp point would require pre-drilling or risk splitting the stock. Paired with a coarse thread, the screw bites quickly and resists pull-out without needing fine-pitch engagement. The flat head with nibs handles countersinking on its own — the small milling ridges on the underside of the head cut a seat as the screw is driven home, so the head ends up flush with the surface without a separate countersink operation. That detail speeds up production runs where stopping to switch bits costs real time.
At 2000 screws per pail, this SKU is sized for shops that run through fasteners regularly rather than occasionally. Pail packaging is convenient for movement around the shop or to the job site. The #2 Phillips drive means no special bits are required — the same driver bit in use for everything else handles this screw. Interior cabinet work, solid-wood carcass assembly, furniture framing, and heavy panel construction are the natural home for this combination of length, thread, and head style. The zinc finish keeps the screw suitable for the dry, climate-controlled environments where most cabinet and casework assembly happens.
The 3-inch length puts the threaded section deep into the receiving member, which increases withdrawal resistance in thicker stock, stacked panels, or joints where the screw passes through a face frame before reaching the cabinet side. Shorter screws may not reach enough solid material to hold the same load.
The Type 17 auger point is designed to self-start in wood without a pilot hole in most solid lumber and panel applications. In very dense hardwood or near edges where splitting is a concern, a pilot hole will reduce that risk.
The nibs are small milling ridges on the underside of the head. As the screw seats, they cut a shallow countersink into the wood surface so the head sits flush. This eliminates a separate countersink step in most wood-based materials.
Coarse thread is well suited for softwood, plywood, MDF, and particleboard. In dense hardwoods like maple or oak, a fine-thread screw provides better holding power and less splitting risk. For hardwood face-frame joinery specifically, confirm the thread matches the material before ordering.
The zinc finish is rated for dry indoor environments. This screw is not suited for exterior use or applications with regular moisture exposure.
When thicker stock, stacked panels, or deep-reach connections are on the build list, this 3-inch Würth assembly screw has the length, the point geometry, and the head design to get the job done cleanly and keep the production line moving.
Sold In: 2000 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 10 Each |  WW614176461 Mfr# 0614176461005 10 | #2 x 1" Phillips Drive Insert Bit (10/Bag) |