You may also like
Bolts 3/8-16 x 4-1/2 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:
- 4/1/02
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- ASTM F468
- 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:
- 7.15 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 JBBH29 – Frequently Asked Questions
1) What thread size and length is the Metallics JBBH29 hex bolt?
The JBBH29 is a 3/8-16 x 4-1/2 inch hex bolt, so it is a 3/8 inch diameter with 16 threads per inch and a 4-1/2 inch shank length. Threads are cut to ANSI/ASME B1.1, and the head and body dimensions follow ASME B18.2.1, so it mates with standard 3/8-16 nuts and tapped holes.
2) Is the Metallics JBBH29 bolt silicon bronze or just bronze plated?
Solid silicon bronze, not a plated steel bolt. The material is silicon bronze to ASTM F468, which is the spec for nonferrous bolts, and the finish is bronze. That is what you want for marine, wet, or corrosive electrical and plumbing work where a plated steel bolt would rust out.
3) Are silicon bronze hex bolts like the JBBH29 Buy American or ARRA compliant for a government job?
No. The JBBH29 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your federal, state, or institutional contract carries a domestic-sourcing clause, this bolt will not satisfy it.
4) Will a 3/8 inch socket or wrench fit the head on the JBBH29?
The head is a hex, measuring 0.551 to 0.562 inches across the width, which is the standard 9/16 inch across-flats for a 3/8 inch hex bolt. Head height runs 0.226 to 0.243 inches. A 9/16 inch socket or open-end wrench is the tool.
5) How many bolts come in a jar of Metallics JBBH29 and can I buy fewer?
They ship in a jar of 50, and 50 each is the order minimum, so a jar is the smallest buy. Other sizes and quantities are available by request if 3/8-16 x 4-1/2 is not the length you need.
6) What is a silicon bronze hex bolt used for instead of a galvanized or stainless one?
Silicon bronze hex bolts are specified for electrical, plumbing, heating and air conditioning work where corrosion resistance and non-ferrous, non-sparking material matter: grounding and bonding connections, water-contact assemblies, and copper or brass hardware where dissimilar-metal corrosion against steel would be a problem. Galvanized steel is the cheaper general structural choice; stainless handles strength-critical work. Bronze is the pick when it bolts to copper alloy or sits in a wet or marine environment.
7) Does the Metallics JBBH29 come with nuts or washers?
No. JBBH29 is the hex bolt only, 50 to a jar. Matching 3/8-16 silicon bronze nuts and bronze washers have to be ordered separately if you need the full assembly in the same material.
8) How much does a jar of 50 Metallics JBBH29 bolts weigh?
A full jar of 50 weighs 7.15 lbs, which is worth knowing if you are stocking a service van or a shop bin. The jar footprint is listed at 4.5 inches wide and 7.25 inches high.
How fast can I get the Metallics JBBH29 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 JBBH29 come with a warranty?
Absolutely. The Metallics JBBH29 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 JBBH29?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JBBH29 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.