Metallics JBHC83 Bolts 3/4-10 X 3-1/2 Hxbt St-zn (Jar 25)

The JBHC83 is a 3/4-10 hex bolt, meaning a 3/4 inch diameter with 10 threads per inch, which is the standard UNC coarse thread for that diameter. Any 3/4-10 coarse nut will thread onto it. Thread form follows ASME B18.2.1-1996, so it mates with off-the-shelf 3/4 inch coarse nuts and washers.

No. These hex bolts are not Buy American compliant and are not ARRA compliant, and the country of origin is listed as multiple. On a federally funded job with domestic sourcing requirements you will need a domestically manufactured fastener instead.

Zinc plating on these steel hex bolts gives light corrosion resistance, which suits indoor mechanical rooms, electrical rooms, and covered areas. For direct weather exposure, wet locations, or coastal and chemically aggressive environments, specify hot dip galvanized or stainless instead; a plated finish will eventually rust through in standing moisture.

Across the flats the head measures 1.088 to 1.125 inches, so a 1-1/8 inch wrench or socket is the one to grab. Corner to corner the head runs 1.240 to 1.299 inches, which is what you need to clear when the bolt head sits down in a channel or against a flange.

JBHC83 ships as a jar of 25 bolts, and 25 each is the order minimum, so the jar is the smallest unit. Metallics notes other sizes and quantities are available by request if 25 of this length is not what the job needs. The JBHC prefix is the jar-packed version of the BHC hex bolt line.

A jar of 25 comes to 12.24 lbs, so figure roughly half a pound per bolt. That is a one-hand carry but worth planning for if you are staging several jars on a lift or a scaffold.