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Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Country Of Origin:
- United States
- 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:
- 1/1/04
- Language Code:
- EN
- Material Standard:
- ASTM F468
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 5.26 lbs
- Product Width:
- 3.5 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 JBBH59D – Frequently Asked Questions
1) Is the Metallics JBBH59D hex bolt silicon bronze all the way through, or just bronze plated?
Solid silicon bronze, not a plated steel bolt. The material is listed as silicon bronze with a bronze finish, and it is made to ASTM F468, the standard covering nonferrous bolts for general use. That is why it gets specified for grounding connections and for outdoor or marine-exposed work where a plated fastener would rust out.
2) What thread does the JBBH59D bolt have, and will a standard 3/8 nut thread onto it?
It runs 16 threads per inch on a 3/8 inch diameter, cut to ANSI/ASME B1.1. Any 3/8-16 UNC nut or tapped hole will take it. For a bronze assembly, pair it with a silicon bronze nut rather than a steel one so you are not mixing metals at the joint.
3) Does the Metallics JBBH59D meet Buy American and ARRA requirements for a federal or public job?
Yes on both. The bolt is flagged Buy American compliant and ARRA compliant, with country of origin listed as the United States. That covers the documentation most government, school district, and federally funded projects ask for on fasteners.
4) Will the JBBH59D hex head clear a tight recess, and what wrench size fits it?
Head width across flats measures 0.551 to 0.562 inch, which is a 9/16 inch wrench or socket. Head height is 0.226 to 0.243 inch. Dimensions follow ASME B18.2.1, so it drops into any clearance worked out from standard hex bolt tables.
5) How is the JBBH59D sold, and can I buy fewer than 100?
It ships as a jar of 100 pieces, and 100 count is the order minimum, so the jar is the smallest unit. If you need a different size or a different pack quantity, Metallics offers other sizes and quantities in the BBH and JBBH series by request.
6) Why spec a silicon bronze hex bolt instead of stainless or galvanized steel?
Silicon bronze is the pick when the fastener is part of an electrical bond or sits in a corrosive outdoor environment. It conducts well and it will not set up a galvanic cell against copper or bronze the way steel or stainless can, which is why the JBBH59D is catalogued as an electrical fastener. Where you are bolting into galvanized steel strut or steel plate, a hot dip galvanized or stainless bolt is the better match on dissimilar metals.
7) How much does a jar of 100 Metallics JBBH59D bolts weigh for shipping or shelf planning?
The jar is listed at 5.26 lbs, with jar dimensions of 5.75 in by 3.5 in by 3.5 in. Useful if you are stocking a van shelf or a bin rack and need to know what the footprint is.
8) Is the JBBH59D a hex head bolt or a hex cap screw with a socket drive?
External hex head, driven with a wrench or socket, no internal drive. Head type is listed as hex and the part is a hexagonal bolt in the Metallics BBH and JBBH series, model JBBH59D.
How fast can I get the Metallics JBBH59D delivered?
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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 JBBH59D come with a warranty?
Absolutely. The Metallics JBBH59D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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