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Bolt 5/16-18 x 1/2 Ind Hx Hd Serr (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Bolts
Metallics JG5HSF51612 – Frequently Asked Questions
1) Do the Metallics 5/16-18 serrated hex bolts need a separate lock washer?
No. The head is a serrated flange type, so the teeth under the flange bite into the mating surface and resist loosening on their own. That is the point of the serration: one fastener instead of a bolt plus a lock washer, which also speeds up repetitive panel and bracket work. On painted or coated surfaces expect the serrations to scar the finish where they seat.
2) Will the JG5HSF51612 bolt thread into a 5/16-18 strut nut or tapped enclosure boss?
Yes, the thread matches. Any 5/16-18 coarse nut, strut channel nut or tapped hole takes it. What you have to watch is grip length, not thread: at 1/2 inch overall the usable grip is short, so if your material stack plus nut depth exceeds that, step up to a longer 5/16-18 bolt.
3) How many bolts come in the Metallics JG5HSF51612 package?
100 pieces, packed in a jar. The jar pack is the shop-stock format, meant to live on a van shelf or in a job box rather than being broken down into counted bags.
4) What is an indented hex head bolt used for in electrical work?
The indented hex head is a standard wrench-driven hex with a slightly dished top, common on electrical fasteners used for bonding, enclosure assembly, strut and bracket mounting. Metallics catalogs this 5/16-18 x 1/2 bolt as an electrical fastener, so it is the size electricians reach for on device and equipment mounting rather than a structural bolt.
5) What is the Metallics part number for the 5/16-18 x 1/2 serrated hex flange bolt?
JG5HSF51612 is the Metallics number, covering the 5/16-18 x 1/2 indented hex head serrated bolt in a 100 piece jar. There is one configuration under that number, so no finish or length option needs to be specified when ordering.
How fast can I get the Metallics JG5HSF51612 delivered?
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JG5HSF51612 come with a warranty?
Absolutely. The Metallics JG5HSF51612 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JG5HSF51612?
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