Metallics JSBH34 Bolts 1/2-13 X 2-1/2 Hxbt SS (Jar 50)

18-8 stainless is an austenitic alloy used where general atmospheric corrosion resistance is needed, including chemical and food-processing equipment, so outdoor and washdown service is within its range. It is not a cure-all: aggressive chemical environments, and chloride exposure such as coastal or pool areas, call for 316 stainless or another specified corrosion-resistant material instead.

The Metallics 1/2-13 stainless hex bolt lists 100,000 to 150,000 psi minimum tensile and 65,000 psi minimum yield, with hardness Rockwell B95 to C32. That tensile range overlaps SAE Grade 5 (120,000 psi), but the 65,000 psi yield is below Grade 5's 92,000 psi, so on a joint engineered around a Grade 5 or Grade 8 torque spec, do not treat stainless as a drop-in strength equal. It is chosen for corrosion resistance, not clamp load.

No. The Metallics JSBH34 hex bolt is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a project with domestic sourcing requirements you need a bolt specifically certified as domestic.

JSBH34 ships as a jar of 50 pieces, and the order minimum is 50 each, so the jar is the smallest unit. Metallics notes other sizes and quantities are available by request if 50 of this length is not what the job needs.

At 2-1/2 inches of overall length under the head, the JSBH34 covers a grip of roughly 2 inches once you allow for a nut and washer, which handles typical strut channel plus a bracket or two layers of angle. For deeper stacks you need a longer shank; Metallics offers other lengths in the SBHC and JSBHC hex bolt series on request.

Both are austenitic stainless and interchange dimensionally at the same 1/2-13 thread, so the choice is environment, not fit. The 18-8 used in the Metallics JSBH34 covers general atmospheric corrosion resistance. Step up to 316 where the exposure is chemical or salt-laden; the product notes some chemical environments require special corrosion resistant materials and precautions.

Metallics lists this hex bolt for the electrical, plumbing, heating and air conditioning industries. In practice that is strut and channel hardware, equipment mounting, pipe hanger assemblies, and rooftop or mechanical-room work where a plated bolt would rust out. The 18-8 material also makes it acceptable around food-processing equipment.

Yes, that is the one handling issue with 18-8 stainless fasteners like the JSBH34. Austenitic stainless threads can seize and gall under fast run-down, especially stainless bolt into stainless nut. Run them slow, use an anti-seize or thread lubricant, and torque by spec rather than by feel.