Metallics JMBHC1216 Bolts M12 x 16 HXBT St-zn (Jar 100)

The JMBHC1216 is an M12 bolt with a 1.75 mm thread pitch, which is the standard coarse metric pitch for M12. Any standard coarse M12 nut or tapped M12 hole will mate with it. If your hardware is fine-pitch M12 (1.5 or 1.25), this bolt will not thread in.

The JMBHC1216 is steel with a zinc finish, which is a mild corrosion coating meant for dry or sheltered interior work such as electrical, plumbing, heating and air conditioning installs. Zinc plating will eventually rust in standing water, on a roof, or anywhere near chlorides. For exterior or wet locations, specify an 18-8 stainless M12 hex bolt instead.

No. These bolts are not Buy American compliant and are not ARRA compliant, with country of origin listed as multiple. If your project carries domestic sourcing requirements, you will need a documented domestic fastener instead.

Rated at 116,000 psi minimum tensile and 92,800 psi minimum yield, with a hardness of Rockwell C22-32. That puts them in medium-carbon heat-treated territory, well above plain low-carbon hardware, and they are sold for electrical, plumbing and HVAC work such as strut, hanger and fitting attachment. Your allowable load still comes from the engineer's spec for the support system, not from the bolt alone.

The head is a standard hex, so a six-point socket or open-end wrench drives it. On coarse-thread metric M12 hardware that is normally an 18 or 19 mm across the flats, so carry both in the pouch. No special driver or security bit is involved.

They ship in a jar of 100 pieces, and that jar is the order minimum, so 100 is the smallest quantity. The filled jar weighs about 1,556 g. The jar format is aimed at a van or shop shelf rather than bulk box quantities. Other sizes and quantities in the MBHC and JMBHC series can be requested.