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Bolt 1/2-13 x 3 Ind Hx Hd Serr Flan (Jar 50)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Bolts
Metallics JG5HSF123 – Frequently Asked Questions
1) What size and thread does the Metallics JG5HSF123 hex flange bolt have?
It's a 1/2-13 x 3 inch bolt, so 1/2 inch diameter, 13 threads per inch (UNC coarse), with a 3 inch length under the head. That thread pitch mates with standard 1/2-13 nuts and 1/2 inch tapped channel or strut.
2) Do I need a separate washer with a serrated flange hex bolt?
No. The serrated flange under the hex head spreads the load like an integral washer and the serrations bite the mounting surface to resist loosening under vibration, which is why these get used on strut, enclosures, and equipment mounting instead of a bolt-plus-washer stack. Pair it with a serrated flange nut if you're bolting through rather than into a tapped hole.
3) How many bolts come in a jar of Metallics JG5HSF123?
50 bolts per jar, packed in a jar rather than a loose box, so it's sold as a bulk unit for a van or shop bin rather than by the piece.
4) Is the Metallics JG5HSF123 the right bolt for mounting electrical equipment and strut?
That's its intended use. Metallics catalogs it as an electrical fastener, and the 1/2-13 thread with a serrated flange head suits strut channel, pipe hanger assemblies, enclosure and transformer mounting, and similar MRO work where a vibration-resistant bolt is wanted without adding a washer.
5) What is an indented hex head bolt and does it change how I drive it?
The "Ind Hx Hd" on the JG5HSF123 means indented hex head, a formed hex with a small dimple in the top from the heading process. You drive it with a standard hex socket or wrench the same as any 1/2 inch hex bolt; the indent is a manufacturing artifact, not a drive feature.
6) What part number do I order for the 1/2-13 x 3 Metallics serrated flange bolt?
Order Metallics part number JG5HSF123. That single MPN covers the 1/2-13 x 3 indented hex head serrated flange bolt in the 50 count jar; there are no size or finish options to specify with it.
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Does the Metallics JG5HSF123 come with a warranty?
Absolutely. The Metallics JG5HSF123 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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