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Bolts 1/4-20 x 2-1/4 HXBT Sbr (Jar 100)
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:
- 0.428 - 0.438 in.
- Fastener Height:
- 0.150 - 0.163
- Fastener Length:
- 2/1/04
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- ASTM F468
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 3.25 lbs
- Product Width:
- 3.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 20
- 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 JBBH51 – Frequently Asked Questions
1) What thread does the Metallics JBBH51 silicon bronze hex bolt take, and what nut do I need?
It is a 1/4-20 thread, so 20 threads per inch on a 1/4 inch diameter, cut to the ANSI/ASME B1.1 unified thread standard. Any standard 1/4-20 nut will thread on; for an outdoor or wet install, pair it with a silicon bronze or other non-ferrous nut so you do not set up galvanic corrosion against the bronze bolt.
2) Will this bolt qualify on a Buy American or ARRA-funded federal job?
No. The JBBH51 bronze hex bolt is not Buy American compliant and is not ARRA compliant, and its country of origin is listed as multiple. On a federally funded project with domestic sourcing requirements, you need a fastener certified as domestic.
3) Why use a silicon bronze bolt instead of plain steel or stainless for an outdoor electrical install?
Silicon bronze holds up in wet and marine-adjacent conditions without the galvanic trouble you get mixing steel into bronze or copper assemblies, which is why the JBBH51 is specified for electrical, plumbing, and heating and air conditioning work. The material is made to ASTM F468, the standard covering non-ferrous bolting. If the surrounding hardware is galvanized or plated steel, a matching steel fastener is the better pick.
4) What size wrench or socket fits the head on this 1/4-20 bronze hex bolt?
Head width across flats measures 0.428 to 0.438 inch, which a 7/16 inch wrench or socket fits. Head height runs 0.150 to 0.163 inch. Head dimensions follow ASME B18.2.1, so it will seat in standard hex-head clearances and work with normal hex drivers.
5) How many bolts come in a jar of Metallics JBBH51, and can I buy fewer?
The JBBH51 ships as a jar of 100 bolts, and the jar is the order minimum, so 100 pieces is the smallest quantity. Other sizes and quantities in the BBH and JBBH bronze hex bolt series can be had by request.
6) Is the bronze color on these bolts a coating that can wear off?
No coating to lose. The bronze appearance comes from the material itself, silicon bronze through and through, with the finish listed as bronze. Cut threads or a scratched shank stay corrosion resistant, unlike a plated steel bolt where damage exposes bare steel.
7) What does the jar of 100 weigh for shipping or stocking on a truck?
A full jar of the JBBH51 bolts is listed at 3.25 lbs, with jar dimensions of 3.5 by 3.5 by 5.75 inches. Easy to carry on the van and small enough for a parts bin shelf.
How fast can I get the Metallics JBBH51 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 JBBH51 come with a warranty?
Absolutely. The Metallics JBBH51 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 JBBH51?
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
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