Würth #8 x 1-1/2" Flat Head Assembly Screw Combo Drive - Sharp Point Turbo Thread Lubricated, 3670000107961 500 - 500/Box

The 1-1/2 Inch Assembly Screw Sized For Joining 3/4-Inch Cabinet Stock

This Würth #8 x 1-1/2 inch flat head assembly screw is built for joining panels, face frames, and cabinet components where 3/4-inch material is the norm. A lubricated turbo thread, sharp point, and combination Phillips/square drive make it a practical everyday screw for woodworking shops and cabinet installers who drive a lot of fasteners and need consistent results without fuss.

Key Features

• 1-1/2 inch length pairs naturally with 3/4-inch cabinet panels and face-frame stock, giving the thread full engagement without over-penetrating.
• Turbo thread design reduces driving torque and speeds up installation in particleboard, MDF, plywood, and solid wood.
• Sharp point self-starts in wood-based materials without a pilot hole in most applications.
• Combination Phillips/square drive accepts a #2 Phillips or a #2 square bit in the same recess, so the screw works with whatever bit is already in the driver.
• Milling nibs under the flat head cut a clean countersink as the screw seats, helping the head sit flush without a separate countersink step.
• Lubricated finish reduces friction during driving, lowering the torque needed and helping protect the drive recess from stripping under load.

Right-Sized For Panel-To-Panel and Frame Joinery

At 1-1/2 inches, this screw is a natural fit for the most common cabinet assembly joint: two 3/4-inch panels or a face frame member joined face-to-face or edge-to-face. The thread engages fully through the first piece and bites deep into the second, drawing the joint tight. It also works for attaching cabinet backs to carcass sides, fastening drawer box components, and securing cleats or blocking inside cabinet boxes. The flat head with nibs seats flush in most wood-based substrates without requiring a pre-drilled countersink, which keeps production moving on repetitive work.

Turbo Thread and Lubricated Finish Working Together

The turbo thread geometry uses an aggressive, wider-pitch profile that reduces the number of rotations needed to reach full depth and lowers the friction load on the driver. The lubricated finish reinforces that advantage by reducing surface drag between the thread and the material as the screw advances. In a production setting where a shop is driving hundreds of screws in a shift, both features reduce wear on bits and drivers and help maintain consistent seating depth across the run. The screw performs across particleboard, MDF, plywood, and softwood, which covers most of what a cabinet shop encounters in a typical day.

For Cabinet Shops and Installers Who Switch Bits on the Fly

The combination Phillips/square drive is a practical choice for busy shops and job-site installers. The same recess accepts either a #2 Phillips or a #2 square bit, which means the screw works with the bit already loaded in the driver. Shops running multiple operators or sharing tools across stations get the torque efficiency of the square drive when they want it, and Phillips compatibility when that is what is at hand. The 500-screw jar is easy to move around the shop or bring to a job site, and the wide-mouth opening makes it convenient to grab screws by hand or use a magnetic bit holder to pick them up one at a time.

Common Questions

Consistent Results on the Joints That Matter Most

When the bulk of a cabinet build comes down to joining 3/4-inch stock cleanly and quickly, this 1-1/2 inch assembly screw covers the job with a thread, point, drive, and finish that work together rather than against each other.