Metallics JRMB86 8-32 x 1 in. Round Head Slotted Machine Screws - Brass - Each

Yes. The Metallics JRMB86 is an 8-32 thread, 32 threads per inch, cut to the ANSI/ASME B1.1 thread standard, which is the same 8-32 machine thread used on electrical device box ears, switch and receptacle mounting holes, and most cover plate hardware. At 1 inch long it gives you more reach than the short screws that ship with a device, which is what you want when a box is set back behind thick plaster or tile.

No. The JRMB86 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a federally funded project with domestic sourcing requirements, these will not qualify.

Brass is the body material on the JRMB86. Two reasons tradespeople specify it: brass does not rust in damp locations, and it is conductive, so it is commonly used for bonding and grounding connections rather than plain mounting. Metallics notes these screws for the electrical, plumbing, heating and air conditioning trades. If you need maximum tensile strength on a structural mount, a steel screw is the better choice; brass is softer and will gall if you overdrive it.

They ship 100 to a jar, and the jar is the order minimum. That is the unit, so one order gets you 100 screws rather than a single piece.

Head height runs 0.107 to 0.12 in. and head diameter 0.287 to 0.309 in., per ASME B18.6.3 for round head machine screws. A round head sits proud of the surface by design, so it is not a flush fit. If you need the head buried in a countersunk plate or a flush cover, use a flat head 8-32 instead.

Slotted drive only, no Phillips or combo recess. The slot measures 0.045 to 0.054 in. wide and 0.058 to 0.077 in. deep, so a standard cabinet-tip flat blade seats properly. Use a blade that fills the slot; brass heads are soft and a narrow tip will chew the slot out.

One inch of length covers most device and plate work, including boxes set back behind drywall, tile, or a mud ring. It is on the long side for a flush-mounted switch plate, where the extra thread will bottom out or stick past the ear. Metallics offers other sizes and quantities in this round head slotted brass line by request, so a shorter or longer 8-32 can be specified.

The jar comes in at 0.61 lbs, with the package measuring 3 in. by 3 in. by 2.15 in. Light enough to drop several into a van stock bin without eating payload.