The Quickscrews #10 x 3-1/2 inch washer head installation screw is built for cabinet installation and structural woodworking tasks where depth of penetration matters. Its combination Phillips/square drive, double auger point, and coarse thread make it a practical choice when fastening into thick material or anchoring through multiple layers of wood.
A 3-1/2 inch screw reaches well beyond what shorter installation screws can access. Driving through a face frame and into a stud, stacking multiple panels, or fastening cabinet runs together at stiles are all situations where this length delivers the thread engagement a shorter screw cannot. It is also the go-to length when securing cabinet boxes to wall framing through finished panels, where the screw needs to pass through drywall and sheathing before biting into wood. The washer head bears against the surface without the need for a countersink, keeping installation straightforward on job sites where stopping to drill pockets is not practical.
The double auger point carries two opposing chip-clearing flutes, which move more material per revolution than a single-flute Type 17 design. In thick, dense lumber the double flute pattern reduces resistance as the point advances, helping the screw start and drive cleanly through the full depth. The combination drive recess is designed to hold a correctly sized square bit on the screw for one-handed placement, and it also accepts a standard #2 Phillips bit when that is the driver available on site. This dual compatibility makes the screw workable across different crews and tool setups without needing a separate SKU.
Cabinet installers running long screws into wall framing, finish carpenters joining thick structural members, and shop crews assembling components from multiple layers of material will all find the 3-1/2 inch length useful in regular rotation. The zinc finish and coarse thread keep it squarely in the category of indoor wood fastening, so it is the right choice for kitchen and bath installs, built-in cabinetry, closet systems, and millwork where the fastener ends up inside a finished space. Shops going through volume will appreciate the 1,000-piece box for keeping supply steady through a full install run.
This length is intended for situations where the screw must penetrate through multiple layers before reaching the structural member, such as through a cabinet panel and drywall into a wall stud. Shorter screws may not reach the framing with enough thread engagement to hold the load.
The double auger point has two opposing flutes instead of one. In thick or dense wood, the dual flutes clear more material per turn, reducing the torque needed to drive the screw through the full depth without stalling.
Yes. The combination recess accepts both a #2 Phillips and a #2 square bit. Either will drive the screw, though the square recess is designed for better bit retention with a correctly sized square bit.
No. The washer head is designed to bear flat against the material surface. It does not countersink and does not require a pre-drilled pocket.
The zinc finish on this screw is suited for dry interior applications. It is not recommended for exterior exposure or direct contact with ACQ pressure-treated lumber.
When the job calls for a fastener that reaches into the structure behind the cabinet, the Quickscrews #10 x 3-1/2 inch installation screw gives installers the depth, drive flexibility, and chip-clearing point to get there cleanly and stay put.
Sold In: 1000 Each
