Metallics JSBH47 Bolts 1/2-13 X 1-1/2 Hxbt SS (Jar 50)

The JSBH47 is a 1/2-13 bolt, 13 threads per inch, which is standard UNC coarse thread for 1/2 inch diameter. It mates with any 1/2-13 coarse nut or tapped hole. Measured shank diameter runs 0.4930 to 0.5000 inch, so it drops through a 9/16 inch clearance hole without reaming.

The JSBH47 is 18-8 stainless, an austenitic alloy suited to general atmospheric corrosion resistance, the kind of service you see in chemical and food-processing equipment. For aggressive chloride exposure, coastal salt spray, or specific chemical attack, step up to 316 stainless instead; some chemical environments need special corrosion resistant materials and added precautions.

Tensile strength is 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness runs Rockwell B95 to C32. That is stainless-fastener territory, not an SAE graded-steel equivalent. If a drawing calls out Grade 5 or Grade 8 by designation, this stainless bolt is not a drop-in substitute for that callout even where the tensile numbers overlap; use it where corrosion resistance is the governing requirement.

No. The JSBH47 is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your project carries a domestic-content clause, this bolt will not satisfy it and you need a domestically sourced 1/2-13 stainless hex bolt instead.

Head width across flats is 0.736 to 0.750 inch, so a 3/4 inch wrench or socket is the one to grab. Across corners the head runs 0.840 to 0.866 inch, which matters if you are tightening in a tight pocket or inside a strut channel.

It ships as a jar of 50 pieces, and 50 each is the order minimum, so a jar is the smallest buy. The filled jar weighs 2468 g. Other sizes and quantities in the series are available by request.

Metallics lists it for the electrical, plumbing, heating and air conditioning trades, so hanging strut, clamping stainless pipe supports, and mounting equipment are all in scope. It is a plain 1/2-13 hex bolt, not an electrical-specific part, so the trade is about where it gets used rather than any limitation on the fastener.