Metallics JHTBBR33 Bolts 1/2-13 x 2 Hx Tap Blt Br (Jar 50)

It's a 1/2-13 hex tap bolt, 2 inches long, in brass. Thread count is 13 per inch (UNC for 1/2 inch diameter), and the measured shank outside diameter runs 0.4930 to 0.5000 inch. Threading on a tap bolt runs the full length, so it threads all the way into a tapped hole or takes a nut anywhere along the 2 inches.

Brass is the material here, and that's the point for electrical grounding and bonding work: it won't rust in damp vaults, handholes or outdoor enclosures, and it stays conductive at the joint instead of building an oxide layer the way plated steel does. Brass is also galvanically closer to copper, so bolting copper ground bar or lugs with brass hardware avoids the dissimilar metal problem you get with steel.

No. The JHTBBR33 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic sourcing clause, this bolt will not satisfy it and you'll need a domestically produced brass bolt instead.

The hex head measures 0.736 to 0.750 inch across the flats, so a 3/4 inch wrench or socket is the right fit. Head height is in the 0.302 to 0.323 inch range, with 0.215 inch of wrenching height for the socket to grip. Brass strips and rounds easier than steel, so a six-point socket is better than an adjustable here.

It ships in a jar of 50, and 50 each is the order minimum. That's a shop-stock quantity, meant to sit on the truck or the bench rather than be bought as a single piece.

Thread and dimensions are to ASME B18.2.1-2012, the inch-series standard for square and hex bolts. That means the 1/2-13 thread and the 3/4 inch across-flats head match any other bolt or nut made to the same standard, so it drops into existing 1/2-13 tapped holes and takes standard 1/2-13 nuts.

Yes, the HTB, JHTB and JSHTB series covers other sizes and quantities by request. The JHTBBR33 is specifically the 1/2-13 x 2 inch brass bolt in a 50 count jar.