Metallics JSBH54 Bolts 5/16-18 X 1-1/4 Hxbt SS (Jar 100)

Yes. The thread is 5/16 with 18 threads per inch, which is standard UNC coarse for that diameter, and the shank measures 0.3065 to 0.3125 inch. It mates with any 5/16-18 nut, strut nut, or tapped hole. Length is 1-1/4 inch, so figure grip plus washers against that.

No. The JSBH54 is not Buy American compliant and is not ARRA compliant, and country of origin is multiple. On a federally funded job with domestic sourcing language in the spec, this jar will not satisfy it.

Across the flats the head measures 0.489 to 0.500 inch, so a 1/2 inch wrench or socket is the right tool. Head height is 13/64 inch, which matters if you're working in a shallow channel or under a clamp where socket clearance is tight.

Tensile runs 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness falls in the Rockwell B95 to C32 band. That puts it in the range of common plated structural fasteners while giving you corrosion resistance instead of a coating that can be scratched through. For high-preload structural connections, check the engineer's spec rather than substituting stainless on your own.

It ships as a jar of 100 bolts, and the jar is the order minimum, so 100 pieces is the smallest quantity. The packed jar weighs 1488 g. If you need a different count or a different length in this hex bolt family, other sizes and quantities are available by request.

No, the jar of 100 is bolts only. You order 5/16-18 nuts and 5/16 washers separately, in matching 18-8 stainless if you want to avoid dissimilar-metal corrosion at the joint.

It is sold into the electrical, plumbing, heating and air conditioning trades, so the typical use is hanging and anchoring work: strut and channel assemblies, pipe clamps and hangers, equipment mounting, enclosure and panel hardware. The 1-1/4 inch length suits clamping through strut plus a nut and washers rather than deep stack-ups.