FastCap #8 x 3" Flat Head PowerHead Screw Square Drive - Type 17 Auger Point Coarse Thread Zinc, PHZ8.3"-150 SQUARE - 150/Box

Powerhead Screw For Square-Drive Wood Assembly

The Fastcap PHZ8.3"-150 SQUARE is a #10 x 3-inch flat head Powerhead screw with a #2 square drive, Type 17 auger point, coarse thread, and zinc finish. Packed 150 to the box, it is built for cabinet and woodworking assembly where a broad-bearing flat head and reliable square-drive engagement are priorities.

Key Features

• Oversized flat Powerhead with nibs delivers a wide bearing surface and mills its own countersink as the head seats.
• #2 square drive is designed to hold the screw on a correctly sized bit, reducing cam-out during driving.
• Type 17 auger point includes a fluted tip that clears wood fibers and reduces driving torque in dense material.
• Coarse thread sized for wood-to-wood fastening in cabinet, trim, and general woodworking applications.
• Zinc finish provides standard corrosion protection suited to dry indoor assembly work.
• 150 screws per box sized for shop use and production cabinet runs.

Where This Screw Fits the Job

The 3-inch length and coarse thread make this screw a practical choice for wood-to-wood connections in cabinet carcass assembly, face frame attachment, and general millwork joinery. The Powerhead's wider-than-standard flat head spans more surface area at the fastening point, which helps distribute the clamping load when drawing panels or frames together. The nibs under the head mill a countersink as the screw is driven, so the head seats flush in most wood-based materials without a separate countersink step. This is especially useful in production environments where cutting that step out of the process adds up across a run of cabinets.

The Type 17 auger point clears chips as it enters the material, lowering the torque needed to drive the screw fully home in hardwood, softwood, and dense composite panels. This is a coarse-thread screw intended for wood substrates in dry, indoor settings.

Square Drive and Zinc Finish

The #2 square drive recess is designed so a correctly sized square bit seats positively in the head, with reduced tendency to cam out under the torque of a power driver. That matters most when driving screws in tight cabinet interiors or at awkward angles where bit slippage is more likely. The zinc finish provides standard indoor corrosion protection appropriate for cabinet shops, finished interiors, and climate-controlled production environments. It is not intended for exterior or high-humidity applications.

A Practical Box Count for Cabinet Shops

A 150-piece box is a good fit for shops that turn over screws steadily across varied project sizes. It keeps inventory manageable without requiring a large upfront commitment, and the box format is easy to store on a fastener rack or carry to an install site. Cabinet assemblers, millwork shops, and finish carpenters working through a steady volume of interior projects will find this count practical for regular restocking.

Common Questions

The Right Flat Head Screw for Square-Drive Shop Work

When the job calls for a broad-bearing flat head, a square drive, and a Type 17 auger point in a 3-inch coarse-thread screw, this Fastcap Powerhead box delivers a dependable, shop-ready option for interior cabinet and woodworking assembly.