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The Würth #7 x 2 inch (50mm) Confirmat Screw is a large-shank cabinet connecting fastener designed for butt joints in particleboard, MDF, and melamine-faced panels. Its sharp point allows the screw to begin threading immediately on contact, and the coarse thread, flat head with nibs, and Pozidriv drive work together to produce a tight, clean joint in engineered cabinet materials. Packed 2000 to the box.
Confirmat screws are typically installed into stepped pilot holes bored with a dedicated confirmat step-drill bit — one pass creates the shank hole, thread channel, and head recess together. Within that system, the sharp point on this screw engages the material at the base of the pilot hole immediately, pulling the thread into the fiber matrix without the screw walking or stalling at entry. That clean thread start matters most at high production rates, where any hesitation at the tip multiplies across hundreds of joints in a shift. The sharp point is well matched to the softer substrates common in cabinet carcass work: particleboard, standard MDF, and melamine-faced panels where the material density is low and thread engagement begins quickly.
The coarse thread geometry on a confirmat screw is engineered for engineered wood, not solid lumber. The wider, deeper thread pitch traps more material volume between the threads in particleboard and MDF, where grain structure does not exist and pull-out resistance depends entirely on how much fiber the thread engages. The flat head with nibs serves two roles: the nibs mill a clean countersink as the head seats, and the flat bearing surface pulls the joint tight across a broad contact area. The zinc finish is appropriate for the interior cabinet environment where these screws are used — dry, climate-controlled, with no exposure to moisture, treated lumber, or corrosive agents.
This screw fits the workflow of a cabinet shop building box carcasses from sheet goods. The confirmat format — large shank, stepped pilot, blunt-shouldered joint — produces a butt joint in particleboard and MDF that is strong, repeatable, and disassemblable if needed. The #3 Pozidriv drive handles the torque load of a production screwdriver without the cam-out risk that limits Phillips drives in high-cycle work. A 2000-count box supports continuous shop production without frequent restocking interruptions. Flat-pack furniture manufacturers, RTA cabinet producers, and cabinet shops building standard frameless box carcasses are the natural users of this screw.
Yes. Confirmat screws require a dedicated confirmat step-drill bit that bores the shank hole, thread channel, and head countersink in one pass. A standard drill bit will not produce the correct hole geometry for this fastener.
This screw is designed for butt joints in particleboard, MDF, and melamine-faced engineered panels — the standard materials in frameless cabinet carcass construction. It is not intended for solid lumber joinery.
This screw uses a #3 Pozidriv recess. A #3 Pozidriv bit is required. Do not substitute a Phillips bit — the parallel flanks of the Pozidriv recess will slip under a tapered Phillips bit and can strip the head.
No. The zinc finish on this screw is rated for dry indoor environments. It is not suitable for exterior, high-humidity, or moisture-exposed applications.
The nibs are small milling ridges on the underside of the flat head. They cut a clean countersink in the panel material as the screw seats, helping the head sit flush without a separate countersink step.
When the job is building frameless cabinet boxes from particleboard or MDF at production volume, this Würth confirmat screw — sharp point, coarse thread, Pozidriv drive, and 2000 to the box — keeps the line moving with consistent starts and clean-seated joints.
Sold In: 2000 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 10 Each |  WW614176653 Mfr# 0614176653090 10 | #3 x 1" Pozidriv Insert Bit |