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The Würth #8 x 1-1/2" flat head assembly screw is a coarse-thread, zinc-plated fastener built for interior wood assembly work. The 1-1/2" length is a natural fit for face-to-face joints in 3/4-inch sheet goods, cabinet carcass connections, and general panel-to-panel fastening where the screw needs to bite deep without punching through.
Cabinet shops and finish carpenters reach for a 1-1/2" screw when the joint involves standard 3/4-inch material. At this length, the screw passes through the near face and threads fully into the receiving piece, pulling the joint tight and holding it there. Joining a cabinet side panel to a fixed shelf, pinning a back cleat to a plywood side, or attaching a nailer strip to a box wall are all situations where this length performs without over-penetrating. It also works through thinner layers — 1/2-inch material over a solid-wood edge, for instance — where a longer screw would risk blowout.
Three design elements make this screw worth specifying for finished cabinet interiors. The flat head is sized to sit flush, not proud, so it disappears into the surface on visible panels. The nibs on the underside of the head mill the wood fiber around the entry point as the head seats, producing a clean countersink without tearing laminate or leaving a raised ring. The Type 17 Auger point handles chip clearance on entry, which matters in dense materials like plywood cross-grain or melamine-coated particleboard where a plain sharp point stalls or splits. Together they produce a fast, clean-seating fastener that keeps production moving.
This screw is at home in cabinet shops running production volume. The #2 Phillips drive is universal — every driver on the bench and in the tool bag accepts it, so there is no bit-swap delay when multiple people are on the same project. Coarse thread grips effectively across the range of panel products used in cabinet construction: plywood, particleboard, MDF, and melamine-faced sheet goods all hold this thread well. The zinc finish suits the indoor, climate-controlled environments where cabinet assembly happens. The 1000-piece box keeps supply ahead of demand on busy assembly days.
The screw passes through the near panel and threads about 3/4" into the receiving piece. That depth gives full thread engagement for a secure joint without punching through the opposite face of standard 3/4-inch sheet goods.
The nibs are small milling ridges on the underside of the head. As the screw seats, they cut the wood fiber and clear it away, allowing the head to sit flush without tearing laminate face or leaving a raised lip around the entry point.
Phillips is the most widely available bit in a shop setting. Every driver and impact driver on the bench accepts a #2 Phillips bit, so there is no changeover when multiple operators are working the same job. For high-torque impact driving, a square or star drive holds the bit more positively, but Phillips handles the load well at the speeds typical for assembly screws in wood panels.
Yes. The coarse thread is designed for engineered wood products including MDF, particleboard, and melamine-faced sheet goods. The Type 17 Auger point clears chips on entry, which helps prevent surface blow-out around the entry hole in laminated panels.
No. The zinc finish is rated for dry indoor use. For exterior work or contact with pressure-treated lumber, a screw with a heavier corrosion-resistant coating is the right call.
A 1-1/2" coarse-thread flat head screw with a Type 17 Auger point and nibs handles the everyday cabinet and panel joinery that production shops run through by the thousands. Packaged 1000 to the box, this Würth assembly screw keeps your supply ahead of your schedule.
Sold In: 1000 Each
