Metallics JGDS4V 8 x 2-1/2 in. Flat Head Phillips Deck Screws - Steel Yellow Zinc - Coarse Threads - Each

The JGDS4V is steel with a yellow zinc dichromate finish, and Metallics lists it for all-weather wood applications as well as electrical, plumbing, and HVAC work. That coating gives moderate corrosion resistance for general exterior wood fastening. It is not stainless, so for salt-air exposure, pressure-treated lumber in standing-water conditions, or cedar and redwood where staining matters, step up to a stainless or polymer-coated deck screw instead.

No. The JGDS4V is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If you are supplying a federally funded job with domestic sourcing language in the spec, this screw will not satisfy it.

Phillips drive, #2 driver size. A standard #2 Phillips bit in a drill or impact driver runs them. The jar also includes a power bit so you can start without hunting for one.

Threads are UNC coarse. That is a wood-screw coarse pitch meant to cut into softwood, plywood, and composite framing, not to mate with a tapped hole or self-drill through steel. For sheet metal or steel studs use a self-drilling tapping screw instead.

JGDS4V is the #8 x 2-1/2 inch flat head Phillips in the 500-count jar. Other sizes and quantities in the JGDS series are available by request, so if you need a shorter screw for 1x material or a larger bulk count for a framing package, ask for the size you want by diameter and length.

Flat head, so it countersinks into softwood and finishes flush or slightly below the surface without a separate countersink bit. If you are fastening through sheet metal, a strap, or a hardwood face, pre-drill and countersink so the head seats without mushrooming the material.

The packaged jar weighs 4.68 lbs and measures 7.25 in. by 4.5 in. by 4.5 in. Useful if you are stocking a service van shelf or palletizing multiple jars for a job trailer.