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Bolts 3/8-16 x 3-1/2 HXBT Sbr (Jar 50)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ASME B18.2.1
- Division:
- Electrical H1
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 3/1/02
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- ASTM F468
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Bolt_Silicon_Bronze.pdf
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 6.82 lbs
- Product Width:
- 4.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Thread Standard:
- ANSI/ASME B1.1
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- BBH and JBBH
- Product Finish:
- Bronze
- Product Details:
- Hexagonal Bolt
- Product Material:
- Silicon Bronze
Metallics JBBH27 – Frequently Asked Questions
1) Is the Metallics JBBH27 hex bolt solid silicon bronze or just bronze plated?
Solid silicon bronze, not a plated steel bolt. The material is silicon bronze throughout, with a bronze finish, made to ASTM F468 for nonferrous bolting material. That is why it gets specified for grounding work and wet or corrosive locations where plated steel would rust out.
2) What thread does the JBBH27 3/8 bolt use, and will a standard 3/8 nut thread onto it?
The JBBH27 is a 3/8 bolt at 16 threads per inch, cut to ANSI/ASME B1.1. That is standard Unified coarse 3/8-16, so any off the shelf 3/8-16 nut or tapped hole will take it. For a bronze bolt in a corrosive location, pair it with a silicon bronze nut rather than a steel one so you are not setting up a dissimilar metal couple.
3) Can I use silicon bronze hex bolts on a federally funded job with Buy American requirements?
No. The JBBH27 is listed as not Buy American compliant and not ARRA compliant, with country of origin shown as multiple. If your project carries Buy American or ARRA domestic sourcing language, this bolt will not satisfy it and you need a domestically produced silicon bronze fastener instead.
4) How many bolts come in a jar of Metallics JBBH27?
Fifty bolts per jar, and 50 each is the order minimum, so the jar is the smallest buy. Each bolt is 3/8-16 x 3-1/2 hex. If you need a different length or a different count, Metallics offers other sizes and quantities by request.
5) Which Metallics part number is the 3/8-16 x 3-1/2 silicon bronze hex bolt?
JBBH27 is the part number, the J prefix denoting the jar pack in the BBH and JBBH silicon bronze hex bolt series. Specify it as 3/8-16 x 3-1/2 hex bolt, silicon bronze, jar of 50.
6) What trades actually use these bronze hex bolts?
Metallics lists the BBH and JBBH silicon bronze hex bolts for the electrical, plumbing, and heating and air conditioning industries. Typical use is bolted grounding and bonding connections, strut and hanger assembly in damp mechanical rooms, and any outdoor or marine-adjacent anchoring where a steel bolt would corrode and lose its connection.
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Can I return it if it doesn’t work for me?
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Does the Metallics JBBH27 come with a warranty?
Absolutely. The Metallics JBBH27 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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