The Würth #8 x 1-1/2" flat head assembly screw is a coarse-thread, zinc-plated fastener sized for cabinet carcass assembly, furniture panels, and softwood joinery where the screw needs to fully engage both workpieces without over-penetrating thin stock. A Type 17 Auger point, flat head with nibs, and #2 square drive round out a screw that drives cleanly and seats flush in production volume.
At 1-1/2 inches, this screw is a natural match for cabinet carcass construction: joining 3/4-inch sheet goods face-to-face, fastening back panels into rabbeted grooves, and attaching nailers or cleats inside a cabinet box. The length puts the threaded section fully into the second panel without blowing through the far face of typical 3/4-inch stock. It also works well for furniture subassemblies and softwood frame joinery where a shorter screw would leave too little thread engagement and a longer one would be overkill.
The Type 17 Auger point leads with a sharp tip and an extended auger flute that pulls chips out of the bore as the screw descends. In softwoods and engineered panels, that means less resistance and less risk of the material blowing out around the entry point. The flat head with underhead nibs follows through by milling a countersink on the way down, so the head finishes flush with the surface without a pre-bore step. The #2 square drive ties it together: the square recess is designed to hold the screw on a correctly sized bit, which helps when you are driving overhead or in tight cabinet interiors where repositioning costs time.
A 7,000-count box is sized for cabinet shops and production environments running high assembly volume. Zinc plating provides adequate corrosion protection for dry, climate-controlled indoor work — the coating is appropriate for cabinet interiors, furniture frames, and shop-built casework where the screw will not see moisture exposure. This is an indoor fastener; for exterior or pressure-treated applications, a coating rated for those conditions is the right call.
When joining two 3/4-inch panels face-to-edge, the screw passes through the first panel and threads into the second. At 1-1/2 inches, the threaded section reaches fully into the receiving panel without the tip emerging from the far face — a clean, tight joint without blow-through.
Coarse thread is the right choice for softwood lumber, plywood, MDF, particleboard, and melamine-faced panels. The wider thread pitch bites into low- to medium-density wood fibers and engineered wood matrices more effectively than fine thread, which is sized for hardwood and metal.
The nibs are small raised ridges on the underside of the flat head. As the screw is driven, they mill the surrounding wood fibers to create a shallow countersink so the head sits flush with the surface. In most softwoods and panel materials this eliminates a separate countersink drilling step.
No. Zinc plating is rated for dry indoor environments. Pressure-treated lumber contains copper compounds that accelerate corrosion of standard zinc coatings. For exterior or treated-lumber work, choose a screw with a coating rated for those conditions.
A #2 square drive bit. Using a correctly sized bit is important for the square recess to hold the screw securely during placement.
When the job is cabinet boxes, furniture panels, and softwood assembly at volume, the Würth #8 x 1-1/2" flat head assembly screw delivers the length, thread, point, and drive combination that keeps production moving without extra steps.
Sold In: 7000 Each
