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This Würth #10 x 3-1/2 inch installation screw is built for situations where shorter screws fall short. The washer head, coarse thread, and sharp point combine in a full-length #10 fastener suited to cabinet installation, built-ins, and structural panel work where reach into thick material matters.
A 3-1/2 inch screw reaches places a standard 2 or 2-1/2 inch fastener cannot. When you are securing a cabinet run to a wall through a thick cleat, pulling a built-in bookcase tight to doubled framing, or fastening through a finished panel into a solid nailer behind it, the added thread engagement holds the connection without relying on just the outer material layers. The washer head keeps the bearing surface broad so the screw draws the assembly together cleanly rather than sinking through a soft face. This length also suits through-panel connections in case goods and heavy millwork where the joint depth demands a longer shank.
The zinc plating is the right call for interior cabinetry and millwork in dry conditions. It protects against incidental moisture without the added cost of a heavier coating that indoor work does not require. The combination Phillips/square recess means the screw does not dictate a bit change mid-job. A #2 square bit gives you good cam-out resistance and holds the screw on a correctly sized bit for one-handed placement. A #2 Phillips works just as well for installers who run Phillips-heavy tool setups. Either way, the same box of screws serves the whole crew.
Cabinet installers hanging upper runs on thick plywood sleepers, finish carpenters securing built-ins through layered walls, and millwork shops assembling heavy case pieces all run into the same problem: shorter screws do not have enough bite. The #10 gauge gives this screw the shank strength to handle those longer connections without flexing under load. Coarse thread pulls cleanly into softwood and engineered panels alike. An 800-count box is sized for production use, keeping a shop or busy install crew stocked through a full project without constant reordering.
An inch of additional shank length, which translates into significantly more thread engagement in the back material. In practice, this allows the screw to reach through a 3/4-inch panel and still bite deeply into framing, a wall cleat, or a thick nailer behind it.
The sharp point self-starts in most softwoods and engineered panels without pre-drilling. In harder or denser stock, a pilot hole reduces the risk of splitting and makes driving easier, especially near edges.
A washer head sits on top of the material rather than countersinking into it. The wide bearing flange spreads clamping force across a larger area, which helps prevent pull-through in softer or thinner face materials and keeps the connection tight over time.
Yes. The same recess accepts a #2 Phillips or a #2 square bit, so you can use whichever is in your driver without switching the screw.
The zinc finish is rated for dry interior use. It is not recommended for exterior exposure, high-humidity environments, or direct contact with pressure-treated lumber where a more protective coating is required.
When the connection demands reach, holding power, and a drive that works with whatever bit is on the tool, this 3-1/2 inch washer head installation screw covers it. Keep a box on the shelf and the job does not slow down when thick stock or layered assemblies call for more thread engagement than a shorter screw can deliver.
Sold In: 800 Each
