Metallics JSBH24 Bolts 3/8-16 X 2 Hxbt SS (Jar 100)

The JSBH24 is a 3/8-16 hex bolt, 2 inches long, with 16 threads per inch and a shank outside diameter of 0.3690 to 0.3750 inch. That is standard 3/8 inch UNC, so it mates with any 3/8-16 nut or tapped 3/8-16 hole. For a stainless assembly, pair it with 18-8 stainless nuts and washers to keep the whole joint corrosion compatible.

18-8 stainless, which is what the JSBH24 is made from, handles general atmospheric corrosion, so it suits exterior conduit runs, damp mechanical rooms, and food-processing or chemical equipment where washdown is routine. Aggressive chemical exposure, chlorides, or marine salt spray is a different problem, and those environments call for 316 stainless or another specified corrosion resistant alloy rather than 18-8.

Tensile strength on the JSBH24 runs 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness is Rockwell B95 to C32. That puts it in the same general tensile range as a grade 5 steel bolt, but the yield is lower, so stainless stretches sooner under load. It is picked for corrosion resistance, not for maximum clamp load. Where a structural connection is calculated on a grade 5 or grade 8 value, don't substitute stainless without checking the engineering.

No. The JSBH24 is not Buy American compliant and is not ARRA compliant, and the country of origin is listed as multiple. If your job carries a domestic sourcing clause, specify a domestic hex bolt instead. Worth settling up front on federal, state, or school district work where the material submittal gets reviewed.

The JSBH24 ships as a jar of 100 bolts, and 100 is the order minimum, with the jar as the selling unit. There is no loose or break-pack quantity. If you need a different length, diameter, or pack count in the same 18-8 stainless hex bolt line, Metallics offers other sizes and quantities by request.

At 2 inches of length under the head, the JSBH24 gives you enough reach for a typical stack of strut channel plus a bracket or clamp and a nut, but add up your actual material thickness plus washer and nut height before committing. Rule of thumb on a 3/8-16 joint is at least a full diameter of thread past the nut. If your stack-up is thicker, order a longer length from the same series rather than stretching this one.

Both are austenitic stainless alloys, so they are dimensionally the same in a 3/8-16 x 2 inch size and will thread together without galvanic trouble. The difference is chemical resistance: 316 holds up in environments that attack 18-8. The JSBH24 is 18-8, so if a spec sheet or a corrosive process calls for 316, order 316 rather than mixing the two in a run.

Metallics lists the JSBH24 for electrical, plumbing, heating and air conditioning work. In practice that is hanging and bracing conduit and pipe, bolting unistrut and trapeze assemblies, mounting enclosures and equipment pads, and anchoring rooftop mechanical where a plated bolt would rust out. It is also called out for chemical and food-processing equipment that needs general corrosion resistance.