Metallics JG5HC11 Bolts 1/4-20 X 1/2 G5 Hxbt St-zn (Jar 100)

Grade 5 is the normal choice for motor mounting and equipment bolting, and that's exactly what these are sold for. Tensile strength is 105,000 psi minimum with a Rockwell C19-30 hardness, from medium carbon steel that's been heat treated. Step up to Grade 8 only where an engineer has called out the higher strength; for typical motor feet, pump bases, and truck or automotive repair work, Grade 5 is the spec.

No. The JG5HC11 Grade 5 hex bolt is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project carries domestic sourcing requirements, you'll need a domestically sourced fastener instead.

Zinc plated steel with a zinc chromate coating handles indoor and sheltered damp conditions, which covers most electrical rooms, mechanical rooms, and equipment pads under cover. It is not a stainless or hot dip galvanized fastener, so for direct weather exposure, coastal air, or wet process areas, specify stainless or hot dip galvanized instead.

They ship as a jar of 100, and the jar is the minimum order quantity, so you are buying in hundreds rather than by the piece. The filled jar weighs 567 g. Other sizes and quantities are available by request.

At 1/2 inch of overall length under the head, this one suits thin sections: sheet metal brackets, strut channel with a channel nut, enclosure feet, and tapped bosses. Figure the material thickness plus enough thread engagement in the nut or tapped hole. If you are stacking a washer, a bracket, and a nut, 1/2 inch runs out fast, so go to a longer length in the same G5HC and JG5HC series.

This is a cap screw: a hex head bolt with a defined grip and a close body tolerance, 0.2450 to 0.2500 inch on the shank, made to ASME B18.2.1-2012. At 1/2 inch of length it is short enough to be fully threaded in practice, so it functions like a tap bolt into a tapped hole or takes a nut. A machine screw is a different animal, smaller head, usually a driver slot, and lower strength with no Grade 5 marking. For motor mounting and machinery work you want the cap screw.

Electrical, plumbing, and heating and air conditioning crews are the stated field applications, which is why it comes in a 100 count jar rather than a bulk box. It's a service-truck and MRO item: mounting motors to machinery, strut and bracket work, plus automotive and truck repair.