Order by 24/7 by web, contact our sales reps or call by phone.
What you need, when you need it, all in one place.
Most orders ship same day.
Advice and support from knowledgeable professionals.
This Würth #8 x 2-1/2" flat head assembly screw is sized for cabinet and casework joints where panels, stiles, or built-up stock call for a longer reach. A combo Phillips/square drive, Type 17 Auger point, coarse thread, underhead nibs, and a black finish come together in a screw built for production volume, packed 2500 to the box.
A 2-1/2" screw covers ground that shorter variants cannot. When a rail, stile, or structural member sits proud of a secondary panel, this length carries threads well into the receiving material for a tight, stable joint. It is the right choice for attaching backs to assembled cabinet carcasses, running screws through 3/4" stock into a nailer or cleat, or pulling a thick face-frame component down flush against a box side. Cabinet installers also reach for this length when driving through a finished end panel into wall blocking, where shallow screws would fail to bite. The coarse thread handles the full range of cabinet substrates: solid hardwood and softwood, plywood, MDF, and melamine-coated particleboard all take this screw without a pilot hole in most situations.
The combo recess accepts a #2 Phillips or a #2 square bit, whichever is loaded in the driver. The square side of the recess is designed to hold the screw on a correctly sized bit for steadier placement when both hands are busy managing the workpiece. The Type 17 Auger point does more than start cleanly: its extended auger flute clears chips ahead of the thread, which matters most in the thick lumber and dense panels this length is typically used in. Underhead nibs work alongside the flat head to seat flush without a separate countersink step, and the black finish keeps the head unobtrusive in dark cabinet interiors where a zinc-bright head would catch the eye.
The 2500-count box suits shops running through assembly screws at volume: multi-line cabinet factories, commercial millwork houses, and cabinet installation crews who bring their own fasteners to the job. At this pack size, the cost of restocking mid-project drops sharply, and the consistent Würth geometry means the same driver setting works screw after screw without head stripping or countersink variation. This is also a practical size for distributors and dealers who supply cabinet shops that prefer to buy in bulk rather than reorder small quantities repeatedly.
The 2-1/2" length provides more thread engagement when driving through built-up stock, thick face-frame components, or a finished panel into a nailer or cleat behind it. Shorter screws may not reach solid material in those situations.
No. The combo recess accepts a standard #2 Phillips bit or a standard #2 square bit. Use whichever is already in your driver.
The Type 17 Auger point works across the cabinet substrate range, including solid wood, plywood, MDF, and particleboard. The flute clears material as the screw drives, which helps in both dense hardwood and the softer, more fibrous structure of engineered panels.
In most wood and panel substrates, the underhead nibs mill the countersink as the flat head seats. A separate countersink step is generally not required, though very hard or brittle materials may benefit from one.
This screw carries a black finish suited for interior cabinet and casework use. It is not rated for exterior or high-moisture environments.
The square recess is designed to hold the screw on a correctly sized bit, which makes placement steadier when one hand is holding a workpiece. This depends on using a bit that fits the recess properly.
Choose this Würth #8 x 2-1/2" assembly screw when the joint calls for extra reach: thick stock, layered panels, or installations where thread engagement in a shallow piece simply will not hold. The combo drive, Type 17 Auger point, and nibs keep the installation clean at scale.
Sold In: 2500 Each
