Metallics DWSR5B 6 x 2 in. Bugle Head Square Drywall Screws - Steel Black Phosphate - Coarse Threads - Each

That's exactly what the Metallics DWSR5B is built for. It's a coarse thread, sharp point drywall screw listed for drywall-to-wood applications. Coarse threads bite wood framing; sharp point starts without a pilot hole. At 2 inches long it's sized for thicker board or double-layer work over wood studs. For steel studs you want a fine thread self-piercing screw instead, not this one.

These ship as a box of 3,500 pieces, which is the order minimum in each. The box weighs 25.9 lbs. Metallics does offer other sizes and quantities in the DWSR series by request if 3,500 of the 2 inch is more than the job needs.

No. Black phosphate is a dry interior finish only, it offers little corrosion protection and will rust in wet or exterior exposure. The DWSR5B is a steel screw with a black phosphate finish, intended for interior drywall-to-wood work. For decks, exterior sheathing, or damp areas use a coated or galvanized exterior screw.

No. The DWSR5B is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If you're buying for a federally funded job with domestic sourcing requirements, this is not the part to submit.

A #1 square drive bit. The recess is square, 0.090 to 0.106 in. wide and 0.055 to 0.071 in. deep, so a #1 square (Robertson) tip seats fully. Square drive resists cam-out better than Phillips when you're running screws with a collated or clutch gun all day.

The DWSR5B uses a bugle head, which is the profile made for drywall: the curved underside compresses the paper face and seats just below the surface without cutting it, so joint compound covers it cleanly. Head width runs 0.315 to 0.347 in. with a head height of 0.020 to 0.031 in. Bugle head dimensions aren't governed by one industry standard, so slight deviation between lots is normal.

They're case hardened to Rockwell C45-64, made from AISI 1018 steel. That's the hardness range drywall screws are run at so the square recess and head hold up under a screw gun. Keep in mind hardened screws are brittle in shear, so they're fasteners for sheathing board, not structural or framing connections.

8 to 10 threads per inch, UNC coarse. That wide spacing is what pulls board tight to wood framing in fewer turns and gives decent holding in softwood studs. If you're fastening to metal track, the pitch is wrong for the application.