Metallics JBRHC54 Bolts 5/16-18 x 1-1/4 HXBT Br (Jar 100)

It sells by the jar of 100 pieces, and 100 count is the order minimum, so there is no loose single-piece option. The jar weighs 1919 g. For MRO stock on a grounding cart or a shop bin that works out fine; if you only need a couple of pieces for one connection, you are still buying the hundred.

Metallics lists the JBRHC54 as compliant for both Buy American and ARRA. Country of origin on the part is China. On a federally funded job where the specification turns on domestic melt and manufacture rather than the compliance designation, get the origin checked against your contract language before you submit it.

Brass is what gets specified where the bolt itself has to carry or not interrupt a bonding path and where corrosion at a dissimilar-metal joint is a concern. The JBRHC54 is brass through the body, not plated, with a brass head. On an electrical ground bus, water pipe clamp, or bonding lug, that keeps the connection conductive and avoids the galvanic problem you get pairing plain steel against copper.

Across the flats the hex head measures 0.489 to 0.500 inch, so a 1/2 inch wrench or socket is the fit. Head height is 13/64 inch, with 0.14 inch of wrenching height, which matters if you are driving it in a recessed pocket or a shallow enclosure.

The 1-1/4 inch length gives you usable grip for a lug plus a bus bar or a clamp body plus a nut, but it is a short bolt. Stack up your material thickness plus washers and nut height before committing: if the total clamped thickness is much past about an inch you will run out of thread. Metallics makes the JBRHC brass hex bolt family in other lengths and sizes on request.

No. The jar contains 100 brass hex bolts only. If you need brass nuts or flat washers to finish the connection, order those separately in matching 5/16-18 thread and brass material so you are not mixing steel hardware into a brass bonding joint.