Metallics JDWC13C 10 x 5 in. Bugle Head Phillips Drywall Screws - Steel Black Phosphate - Coarse Threads - Each

Coarse thread with a sharp point, which is the wood-framing combination. The Metallics JDWC13C runs 8 threads per inch in UNC coarse spacing and comes to a sharp point, so it drives into wood studs and plates without pre-drilling. For light gauge steel studs you want a fine thread drywall screw instead, since coarse threads strip in sheet steel.

Yes, for ordinary single-layer hanging. At 5 inches of length in a #10 diameter, the JDWC13C is sized for thick build-ups, multi-layer board, furring over existing finish, or screwing through heavy shims into framing. For a single sheet of 1/2 in. drywall you want a much shorter screw, typically in the 1-1/4 inch range, so the point doesn't run deep past the stud.

No. The black phosphate finish on the JDWC13C is a mild corrosion and friction coating for dry interior use only. It will rust in wet or exterior exposure, including unconditioned garages and bathrooms with standing moisture. For exterior or wet work, move to a coated deck screw or a stainless fastener.

A #2 Phillips bit. The bugle head takes a Phillips recess 0.190 to 0.204 in. in diameter and 0.124 in. deep, so a #2 tip seats fully and keeps you from camming out when you set the head.

That's what the bugle profile is for. Head height on these runs 0.020 to 0.039 in. with a head width of 0.334 to 0.363 in., so the tapered underside pulls the head into the paper face without tearing it and leaves a shallow dimple you can fill. Metallics notes there is no single industry standard for bugle head or drywall screw dimensions, so slight deviation from those figures is normal.

They ship in a jar, with a minimum order of 100 count. The jar weighs 2.48 lbs. Metallics lists other sizes and quantities as available by request if 5 inch isn't the length you need.

Metallics lists the JDWC13C as both ARRA compliant and Buy American compliant under its compliance coding, with country of origin China. If your contract carries a strict domestic-melt-and-manufacture clause rather than a general Buy American provision, confirm the origin against your spec before you submit.

AISI 1018 steel, case hardened to Rockwell C45-64. That hardness is what lets a sharp point #10 screw bite wood framing and resist the Phillips recess stripping under a collated or clutch driver. It also means the shank is brittle rather than ductile, so these are a fastening screw, not a structural or shear-rated connector.

UNC coarse thread at 8 threads per inch. The wide pitch gives fewer, deeper threads per inch of shank, which is what grabs and holds in soft framing lumber where a fine thread would spin out. With 5 inches of length there is plenty of thread engagement past the board into the stud.