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Bolts 5/16-18 x 4 HXBT Pln-St (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- Jul-32 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.484 - 0.500 in.
- Fastener Height:
- 0.195 - 0.235
- Fastener Length:
- 4
- Fastener Width:
- 0.552 - 0.577
- Language Code:
- EN
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Outside Diameter:
- 0.298 - 0.324 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 9.28 lbs
- Product Width:
- 4.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 18
- Thread Standard:
- ASME B18.2.1-1996
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- BHC and JBHC
- Product Finish:
- Plain
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JBHC103PL – Frequently Asked Questions
1) What thread size and length are the Metallics JBHC103PL hex bolts?
They're 5/16-18 x 4 inch hex head bolts: 18 threads per inch on a 5/16 inch nominal diameter, with a 4 inch length. Measured shank outside diameter runs 0.298 to 0.324 inch. Threading follows ASME B18.2.1-1996, so they mate with standard 5/16-18 UNC nuts and tapped holes.
2) Are these plain steel bolts suitable for outdoor or damp electrical installations?
No. The finish is plain, uncoated steel, so there's no zinc or corrosion protection. Keep them to dry interior work such as indoor strut, panel, and enclosure mounting. For exterior runs, wet locations, or anything exposed to weather, use a hot dip galvanized or stainless 5/16-18 hex bolt instead.
3) Do these Metallics hex bolts meet Buy American requirements on a federal job?
The JBHC103PL is flagged Buy American compliant and ARRA compliant in the Metallics data, with country of origin listed as China. On a federally funded project, hand both of those facts to your specifying authority before you submit, since the compliance route and the origin need to line up with your contract language.
4) What size wrench or socket fits these 5/16-18 hex bolts?
Head width across the flats measures 0.484 to 0.500 inch, which is a 1/2 inch wrench or socket. Across-corners dimension is 0.552 to 0.577 inch, worth knowing if you're working in a tight channel or strut run.
5) How many bolts come in a jar of Metallics JBHC103PL, and can I buy fewer?
They ship as a jar of 100. The order minimum is 100 count, so the jar is the smallest buy. Metallics notes other sizes and quantities are available by request.
6) How thick a stack-up will a 4 inch long 5/16-18 hex bolt clamp?
At 4 inches overall under the head, these bolts handle deep assemblies: think doubled strut, spacers and blocking, or a backplate plus structure. Allow for your nut and washers at the far end. If your grip is only an inch or two, step down to a shorter 5/16-18 length rather than running excess thread past the nut.
7) Will these bolts work for mounting electrical panels and strut in a maintenance stockroom?
That's exactly the use. Metallics sells the BHC and JBHC series into the electrical trade, and the jar of 100 format suits an MRO crib where you pull a handful at a time for panel, enclosure, and strut hardware. One caveat: plain steel means interior dry locations only.
8) How much does a jar of 100 of the 5/16-18 x 4 inch hex bolts weigh?
The packed jar weighs 9.28 lbs. Useful if you're palletizing a multi-jar order or hauling several sizes up to a roof.
How fast can I get the Metallics JBHC103PL delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JBHC103PL come with a warranty?
Absolutely. The Metallics JBHC103PL 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 JBHC103PL?
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