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The Würth #8 x 1-5/8" flat head assembly screw is a coarse-thread, square-drive fastener built for cabinet carcass assembly, panel joinery, and general wood construction. At 1-5/8 inches, it threads through 3/4-inch face material and bites firmly into a second member, making it a natural fit for the joints cabinetmakers drive most. A Type 17 Auger point, under-head nibs, and a #2 square drive round out a screw designed for production volume in a shop or on the job.
The 1-5/8-inch length is a practical match for joints built from standard 3/4-inch sheet goods or solid stock. It passes through the near member with enough thread remaining to bite deep into the second — enough engagement to pull the joint closed without blowing through the back face of a typical cabinet panel. That makes it useful for assembling cabinet boxes, attaching face frames to carcasses, securing shelf nailers and cleats, and fastening wood components where consistent depth control matters. For shops running melamine, plywood, or hardwood panels in cabinet construction, this length covers the majority of routine joints without reaching for a different bin.
The Type 17 Auger point features an extended cutting flute that evacuates chips more aggressively than a standard Type 17 tip, lowering the torque required to drive the screw fully home in hardwood, dense plywood, and thick solid stock. Milling nibs on the underside of the flat head cut their own countersink as the screw seats, so the head finishes flush in most wood substrates without pre-countersinking. The black finish keeps heads low-profile against dark cabinet interiors and finished panel surfaces. For interior cabinetry and woodworking, this finish holds up well in the dry, controlled environments where these screws are at home.
Cabinet shops running production volume make up the core audience. The pail format puts 3500 screws in a container that travels around the shop floor and to install sites without the bulk of a fixed carton. The #2 square drive reduces cam-out during fast, repetitive driving, and the auger point keeps torque manageable when the driver is running all day through hardwood or dense panel material. Finish carpenters and millwork crews building face frames and panel assemblies on site will find the same advantages: a screw that starts clean, seats flush, and disappears into dark surfaces. Pail packaging is convenient for movement around the shop or to the job site.
It threads fully through 3/4-inch stock and bites into the second member with enough thread engagement to close the joint, while stopping short of breaking through the back face of a standard cabinet panel. That combination of penetration and control makes it one of the most-used lengths in carcass and face-frame work.
The extended auger flute on a Type 17 Auger point clears wood fibers more aggressively than a gimlet or standard T17 tip. That chip evacuation lowers the torque needed to drive the screw through hardwood or dense panel material, reducing the risk of head stripping or stock splitting near an edge.
In most wood and wood-composite substrates the nibs mill their own countersink as the head seats, so a separate countersink step is not required. Very hard surfaces or laminated faces may benefit from a pilot to keep the entry point clean.
Yes. The black finish keeps screw heads inconspicuous against dark cabinet interiors. It is designed for interior woodworking in dry, climate-controlled conditions.
The square recess is designed to hold the screw on a correctly sized bit for one-handed placement, which speeds up repetitive driving compared to a Phillips recess that relies on operator pressure to stay engaged. Cam-out is also significantly reduced, which matters when a driver is running at speed through hundreds of fasteners a day.
This 1-5/8-inch Würth assembly screw covers the joints cabinet shops drive most, delivered in a pail quantity that keeps the bin full through long production days without a trip to the shelf.
Sold In: 3500 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  WW90210 Mfr# 0614176153961 1 | #2 x 1" Square Drive Insert Bit, 2 Piece Bit | ||||
Sold in: 1 Each |  WW90220 Mfr# 0614176139961 1 | #2 x 2" Square Drive Insert Bit, 2 Piece Bit | ||||
Sold in: 1 Each |  WW90230 Mfr# 0614176140961 1 | #2 x 3" Square Drive Insert Bit, 2 Piece Bit | ||||
Sold in: 1 Each |  WW90240 Mfr# 0614176142961 1 | #2 x 4" Square Drive Insert Bit, 2 Piece Bit | ||||
Sold in: 1 Each |  WW90260 Mfr# 0614176143961 1 | #2 x 6" Square Drive Insert Bit, 2 Piece Bit |