Screws

Screws are the fasteners you reach for to create tight, reliable, and serviceable joints in wood, metal, masonry, and plastics. They deliver strong holding power with precise clamping force, and they’re easy to drive with a screwdriver, drill/driver, or impact driver. From framing and decking to cabinetry, HVAC, and electrical fixtures, the right screw improves productivity, durability, and appearance while allowing future disassembly for repair or upgrades.

Common screw types you’ll find here:
- Wood screws: coarse threads and sharp points for softwood and hardwood.
- Deck/exterior screws: stainless, ceramic-coated, or hot-dip galvanized for weather resistance.
- Drywall screws: bugle heads that seat cleanly without tearing paper.
- Machine screws: uniform threads for tapped holes and nuts in metal and plastic.
- Sheet metal screws: self-tapping for thin stock and ducts.
- Self-drilling (TEK) screws: drill and tap in one step, saving time.
- Concrete/masonry screws: hardened threads for block, brick, and poured concrete.
- Structural wood screws: high-strength alternatives to lag bolts, with tested values.
- Set screws: headless options for collars, pulleys, and fixtures.

Heads and drives:
- Flat/countersunk, pan, round, hex washer, and truss heads.
- Torx/Star and Square/Robertson for high torque and reduced cam-out; Phillips, Pozidriv, Slotted, and Hex/Socket as required.

Materials and finishes:
- Carbon steel with zinc or black phosphate, stainless 304/316, brass, and silicon bronze.
- ACQ-treated lumber compatible coatings for decks and fences.

Sizing and selection tips:
- Match gauge/diameter and length to material thickness; imperial (#4–#14) and metric (M3–M12).
- Use coarse threads for wood, fine threads for metal; drill correct pilot holes.
- Pre-drill hardwood and countersink to prevent splitting and tear-out.
- Set your driver’s clutch to avoid overdriving; use impact-rated bits.
- For exterior or coastal projects, choose stainless or hot-dip galvanized.
- For concrete, use a carbide bit and the specified hole size.

Shop bulk screws and assortment kits to keep projects moving and reduce downtime.