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This Quickscrews #8 x 3-inch flat head assembly screw is built for wood assemblies where joint depth demands a longer fastener. The combination square/Phillips drive, double auger point, coarse thread, flat head with nibs, and lubricated finish work together to make this a dependable workhorse in cabinet shops, millwork operations, and site carpentry where thicker substrates are the norm.
At 3 inches, this screw reaches through material combinations that shorter fasteners cannot fully engage. Attaching a face frame to a cabinet box through double-thickness stock, tying a stretcher into a thick tabletop apron, fastening interior blocking through a panel face, or securing a cleat through 3/4-inch material and deep into the supporting member behind it — these are the situations where the extra length translates directly into holding power. Cabinet and millwork shops building heavy carcasses, furniture makers working with thick hardwood or laminated panels, and site carpenters assembling built-in cabinetry in the field will all find this length useful where the joint simply needs more thread engagement than a shorter screw can provide.
The combination recess accepts a #2 square or #2 Phillips bit without any modification to the screw. Square drive is the preferred choice when bit retention and cam-out resistance matter most — the square recess is designed to hold the screw on a correctly sized bit for one-handed placement. Phillips remains available as a fallback when that is what is in the gun. The double auger point carries two opposing flutes at the tip, which doubles the chip-clearing capacity compared to a standard Type 17 point. This matters in dense or thick lumber where a single-flute point can pack chips and slow penetration. The lubricated coating on the shank reduces friction through the full 3-inch drive path, keeping torque manageable even in harder materials. Flat head with nibs means the underhead ridges mill the countersink as the screw seats — no separate countersink bit required in most wood-based panels.
This is a production-volume screw packaged 2000 to the box, sized for shops and crews that go through fasteners steadily. The coarse thread is suited to softwood lumber, plywood, MDF, particleboard, and melamine-faced sheet goods — the materials that make up most cabinet and furniture carcass work. This screw is intended for interior wood assembly. It is not rated for exterior, pressure-treated lumber, or high-moisture environments, and the lubricated finish is not a corrosion-resistant coating.
Use the 3-inch length when the joint depth requires more thread engagement than shorter screws provide — for example, fastening through double-thickness panels, into thick solid-wood members, or through a face frame and deep into a cabinet side.
A standard Type 17 point has one flute. The double auger point has two opposing flutes, which clears chips faster and reduces resistance in thick or dense material — useful when driving a long screw the full depth without stalling.
Yes. The combination recess accepts both a #2 square and a #2 Phillips bit. Square drive is preferred for better cam-out resistance, but Phillips works when that is the bit available.
In most wood-based panels — plywood, MDF, particleboard — the nibs mill the countersink as the head seats, so a separate countersink step is not required. In very hard solid wood, a pilot countersink may improve the result.
No. This screw has a lubricated finish that reduces driving friction but does not provide corrosion resistance. It is designed for interior wood assembly only.
When the joint is deep and the stock is thick, this 3-inch Quickscrews assembly screw delivers the reach, the thread engagement, and the driving ease to keep production moving through demanding cabinet and millwork builds.
Sold In: 2000 Each
