Metallics JSHTB49 Bolts 1/4-20 X 1-1/4 Hx Tap Blt SS (Jar 100)

It's a 1/4-20 bolt, 20 threads per inch, right hand thread, so it threads into any standard 1/4-20 tapped hole, strut nut, or hex nut. Length is 1-1/4 inches and the thread runs the full length, which is what a tap bolt is for: complete thread engagement where you are threading into a tapped hole or channel nut rather than through a clearance hole with a nut on the back.

The bolt is 18-8 stainless steel, the standard austenitic grade used for general corrosion resistance. That makes it suitable for damp environments, exterior strut runs, and wet mechanical spaces where plated carbon steel would rust. For heavy chloride exposure (coastal or pool chemical rooms) a 316 fastener is the usual step up.

A tap bolt is threaded all the way to the head, so no nut is required when you are driving into a tapped hole, a threaded insert, or a strut channel nut. These are supplied for complete thread engagement applications. If your detail is a through-hole, you'll need to add a 1/4-20 nut and washers separately, since none are included.

No. The JSHTB49 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. For a federally funded job carrying domestic-sourcing language, you need a domestically produced fastener instead.

Rated at 95,000 psi minimum tensile and 60,000 psi minimum yield, with hardness in the Rockwell B95 to C32 range. That is typical 18-8 stainless property class territory, below a Grade 5 or Grade 8 plated steel bolt, so for structural or high-torque hanger loads check your engineer's spec before swapping stainless in for a graded steel bolt.

Head width across the flats measures 0.425 to 0.438 inch, which is a 7/16 inch wrench or socket. Across the corners the head runs 0.484 to 0.505 inch, worth knowing if you are driving these in a tight strut channel or close to an obstruction.

They ship as a jar of 100 pieces, and the jar is the minimum order quantity, so 100 is the smallest buy. The jar packaging is what MRO and electrical stockrooms want for bin storage. Other sizes and quantities in the HTB, JHTB, and JSHTB tap bolt family are available by request.

Electrical, plumbing, heating, and air conditioning work: strut and channel assembly, hanger and clevis hardware, enclosure and panel mounting, equipment anchoring into tapped bosses. Anywhere you are threading a 1/4-20 into an existing tapped hole and want a stainless fastener rather than zinc-plated steel.

Threads are produced to IFI-199 (2014), the Industrial Fasteners Institute standard, right hand. If your submittal asks for a thread conformance reference on the fastener schedule, that is the citation to put down.