Metallics JDWS10C 10 x 3-1/2 in. Bugle Head Phillips Drywall Screws - Steel Black Phosphate - Fine Threads - Each

Fine thread, sharp point drywall screws are the metal stud choice. The JDWS10C runs 14 threads per inch with fine UNF thread spacing, and Metallics lists its field application as hardwood, light gauge steel and light gauge aluminum. For softwood framing most crews use a coarse thread screw instead, since coarse thread bites softwood better. On light gauge steel track or hardwood, this is the one.

At 3-1/2 inches long, the JDWS10C is well past single layer board. A #10 x 3-1/2 in. screw is for multi layer board build ups, laminated partitions, or fastening through drywall into framing behind. For a single 1/2 or 5/8 inch sheet on steel studs, a 1 inch to 1-1/4 inch fine thread screw is the normal pick.

No pilot hole. The JDWS10C is a sharp point screw, hardened to Rockwell C44, which lets it pierce light gauge steel studs and light gauge aluminum directly under a screw gun. It is not a self drilling point, so heavier structural gauge steel calls for a drill point screw instead.

No. The Metallics JDWS10C is listed as not Buy American compliant and not ARRA compliant, with country of origin reported as multiple. On a federally funded project with domestic sourcing requirements, you will need a different fastener.

A #2 Phillips. The head is a bugle with a Phillips recess, and Metallics specifies a #2 driver size. Recess diameter runs 0.190 to 0.204 in. with a 0.124 in. depth, so a worn or undersized bit will cam out and strip the head.

That's what the bugle head is for. The JDWS10C head measures 0.334 to 0.363 in. across with a head height of 0.020 to 0.039 in., so the tapered underside pulls into the paper face and dimples rather than tearing it, leaving a shallow depression you can fill with compound. Metallics notes there is no single industry standard for bugle head dimensions, so slight deviations are normal.

They come in a jar, with an order minimum of 100 pieces, and the jar weighs 1.86 lbs. Metallics notes other sizes and quantities are available by request.

Keep it interior and dry. Black phosphate is the standard finish on the JDWS10C, and it gives only mild corrosion resistance plus lubricity for driving. Exterior sheathing, soffits, or anywhere exposed to moisture should get a coated or galvanized fastener rather than a phosphate drywall screw.

AISI 1018 steel, case hardened to Rockwell C44 and finished in black phosphate. That hardness is what keeps the Phillips recess from stripping and the point from rolling over when driving into light gauge steel.

Within its stated range, yes. Metallics lists the field application for this screw as hardwood, light gauge steel and light gauge aluminum, so a #10 x 3-1/2 in. sharp point screw will fasten through into those materials. It is a drywall screw, not a structural or load rated anchor, so anything carrying real load should use a fastener rated for it.