Metallics JSBH11 Bolts 1/4-20 X 1/2 Hxbt SS (Jar 100)

The JSBH11 is a 1/4-20 hex bolt, so 20 threads per inch on a 1/4 inch coarse (UNC) thread. Measured shank outside diameter runs 0.2450 to 0.2500 inch, which is standard 1/4 inch bolt stock. It mates with any 1/4-20 nut, insert, or tapped hole, including 1/4-20 strut nuts and threaded channel.

Yes. The JSBH11 is a 1/4-20 hex head bolt, and 1/4-20 is one of the standard strut-channel thread sizes, so it threads into 1/4-20 channel nuts and spring nuts. The stainless material matters here: pairing an 18-8 stainless bolt with a stainless channel nut avoids the galvanic mismatch you get mixing plated steel hardware into stainless strut runs.

18-8 stainless is an austenitic alloy used where you need general atmospheric corrosion resistance, which covers outdoor conduit supports, rooftop equipment, and food-processing or washdown areas. It is not the answer for aggressive chemical exposure or salt-heavy coastal and pool-chemical environments; those call for 316 stainless or another specialty corrosion-resistant alloy.

No on both counts. The JSBH11 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your public-works or federally funded project carries a domestic-content requirement, this jar will not satisfy it and you need a domestically produced stainless hex bolt instead.

Head width across flats measures 0.428 to 0.438 inch, which is a 7/16 inch wrench or socket. That is the standard hex size for a 1/4 inch bolt, so a 7/16 combination wrench, nut driver, or 1/4 inch drive socket drives it.

The JSBH11 carries a minimum tensile strength of 100,000 to 150,000 psi and a minimum yield of 65,000 psi, with hardness of Rockwell B95 to C32. That is in the range of a medium-strength fastener, suitable for general equipment mounting, conduit and box support, and strut hardware. For a rated structural or seismic connection, follow whatever grade the engineer specifies on the drawing rather than substituting a stainless bolt by strength alone, since stainless is not graded the same way as SAE steel bolts.

These ship as a jar of 100 pieces, and the jar is the order minimum, so 100 is the smallest buy. Metallics does offer other sizes and quantities in the SBHC and JSBHC hex bolt series on request if 1/4-20 x 1/2 in a 100-count jar is not the configuration you need.

No. The jar contains hex bolts only, 100 pieces of 1/4-20 x 1/2. If the bolt is going through a hole rather than into a tapped hole or a channel nut, order 1/4-20 stainless hex nuts and matching stainless flat and lock washers separately. Keep the nuts and washers in the same 18-8 stainless family as the bolt to avoid mixing dissimilar metals in the joint.