Metallics JSBH207 Bolts 1/4-28 x 2-1/2 HXBT SS (Jar 100)

Fine thread. The JSBH207 is a 1/4-28 hex bolt, 28 threads per inch, so it will only mate with 1/4-28 UNF nuts and tapped holes. If the hole or nut on your assembly is 1/4-20 coarse, this bolt will not thread in. Shank diameter runs 0.2450 to 0.2500 inches.

These are 18-8 stainless steel, an austenitic alloy used where general atmospheric corrosion resistance is needed, including chemical and food-processing equipment. That covers most exterior and wash-down duty. Aggressive chemical exposure or chloride-heavy environments (coastal spray, pool chemistry, de-icing salt) call for 316 stainless instead.

The JSBH207 hex bolt is flagged as both Buy American compliant and ARRA compliant, which is what a government, school, or municipal procurement file normally needs on a fastener line item.

Tensile strength is rated 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness runs Rockwell B95 to C32. That puts it in the same general tensile range as a Grade 5 plated bolt, but stainless yields lower, so for high-preload structural connections a graded carbon steel bolt is the better choice. Pick the stainless where corrosion is the governing concern.

Yes. The 18-8 stainless hex bolts in this series are described as cap screws, so threading them straight into a tapped 1/4-28 hole is a normal use, as well as running them through with a nut. Confirm your tapped hole is fine thread, not 1/4-20.

They ship 100 pieces in a jar, and 100 count is the order minimum, so one jar is the smallest buy. The jar packaging keeps loose fine-thread bolts together on a service truck or in a shop bin rather than scattered in a bag.

The SBHC and JSBHC series of stainless hex bolts covers other sizes and quantities by request, so if 2-1/2 inches is the wrong grip length for your joint, another length in the same 18-8 stainless family can be quoted.