Metallics JBBH19 Bolts 1/4-20 X 1-1/4 Hxbt Sbr (Jar 100)

The JBBH19 is a 1/4-20 hex bolt, 20 threads per inch, cut to ANSI/ASME B1.1. That is standard UNC, so any off the shelf 1/4-20 nut threads onto it. For a bronze installation, pair it with a silicon bronze nut so you are not mixing metals at the joint.

Silicon bronze is the choice where corrosion and galvanic mismatch matter, typically marine and wet exposure or where the bolt is fastening to bronze or copper components. The JBBH19 is silicon bronze to ASTM F468 (the nonferrous bolting material spec) with a bronze finish. Galvanized steel is cheaper but the zinc sacrifices quickly in salt air, and stainless in contact with copper alloys can drive galvanic corrosion at the joint.

No. The JBBH19 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project carries domestic sourcing requirements, this part will not satisfy them.

Head width across flats runs 0.428 to 0.438 inch, which is a 7/16 inch wrench or socket. Head height is 0.150 to 0.163 inch. The dimensions follow ASME B18.2.1, so it drives like any standard inch hex bolt and clears a normal 7/16 box end.

JBBH19 ships as a jar of 100, and the jar is the order minimum, so it is sold by the full jar rather than loose by the piece. The packed jar weighs 2.24 lbs. Other sizes and quantities are available by request.

Metallics lists the BBH and JBBH hex bolts for electrical, plumbing, heating and air conditioning work. In practice that is grounding and bonding hardware, strut and hanger assemblies, and fixture mounting where a corrosion resistant nonferrous fastener is specified.

Both sit in the same BBH and JBBH silicon bronze hex bolt series. The J prefix denotes the jar packaging, so JBBH19 is the jarred 100 count of the 1/4-20 x 1-1/4 bolt. If you need a different count or a different diameter and length, the series covers other sizes by request.