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The Würth #10 x 2-1/2 inch truss head installation screw is a fine-thread, drill-point fastener built for attaching wood, panels, or trim components to metal studs, light steel framing, and similar substrates. The truss head's wide, low-profile bearing surface holds material firmly without a countersink, and the drill point starts cleanly in metal without a pilot hole.
This screw is designed for situations where wood or panel material meets metal: attaching cabinet hanging rails to steel framing, securing trim or furring strips to metal studs, and fastening wood blocking or backer panels to light steel in commercial or multifamily construction. The fine thread engages the thinner wall of a metal stud consistently, and the truss head bears flat against the surface without pulling through. For any application where the substrate is metal framing up to light steel gauge, this is the screw to reach for rather than a coarse-thread wood screw that would skip over the threads.
The zinc finish on this screw provides the level of corrosion protection appropriate for dry interior installation work. It is the right choice for climate-controlled spaces: commercial interiors, office fit-outs, multifamily residential construction, and shop-built cabinet installations in controlled environments. For applications in high-humidity areas or anywhere moisture is a regular factor, a screw with heavier corrosion protection is the better call.
Cabinet installers working in steel-stud construction, commercial finish carpenters, and shop crews building panels or assemblies that will attach to metal framing will get the most out of this screw. The 500-count box supports a full installation without running short mid-job. If the work is consistently wood-to-wood rather than wood-to-metal, a coarse-thread version of this size is better matched to that substrate.
Fine thread is designed for metal substrates. It engages the thinner wall of a metal stud or light steel section more effectively than coarse thread, which is optimized for wood fiber. Using a coarse-thread screw in metal often results in weak or stripped engagement.
No. The drill point is designed to self-start in light steel framing without a pilot hole, eliminating that step from the installation sequence.
The truss head is wider and lower in profile than a standard pan head, so it covers more surface area at the fastening point without protruding significantly above the material. That makes it well suited for applications where pull-through resistance matters and a flush or sub-flush finish is not required.
The zinc finish is intended for dry indoor environments. It is not the right choice for exterior work, wet areas, or contact with pressure-treated lumber.
A standard #2 Phillips bit. No specialty bit is needed.
When cabinet and trim work meets metal framing, having the right thread form in hand makes the difference between a clean install and a stripped fastener. This Würth truss head installation screw puts fine thread, drill-point entry, and a wide bearing head together in one screw sized for that exact situation.
Sold In: 500 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 2000 Each |  WW39185 Mfr# 3670000021961 2000 | Würth #10 x 2-1/2" Truss Head Installation Screw Phillips Drive - Drill Point Fine Thread Zinc, 3670000021961 2000 - 2000/Box | ||||
Sold in: 10 Each |  WW614176648 Mfr# 0614176648005 10 | #3 x 1" Phillips Drive Insert Bit (10/Box) |