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Bolts 1/2-13 x 3-3/4 HXBT Sbr (Jar 50)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.2.1
- Division:
- Electrical H1
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.736 - 0.750 in.
- Fastener Height:
- 0.302 - 0.323
- Fastener Length:
- 3/3/04
- Language Code:
- EN
- Material Standard:
- ASTM F468
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 11.48 lbs
- Product Width:
- 4.5 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 13
- 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 JBBH40 – Frequently Asked Questions
1) What thread size and length is the Metallics JBBH40 hex bolt?
The JBBH40 is a 1/2-13 x 3-3/4 inch hex bolt, so 1/2 inch diameter with 13 threads per inch (UNC coarse) and a 3-3/4 inch shank length. Threads are cut to ANSI/ASME B1.1, so it mates with any standard 1/2-13 nut or tapped hole.
2) Is this bolt silicon bronze all the way through, or just bronze plated?
Solid silicon bronze, not a plating. The material is specified to ASTM F468, the standard covering nonferrous bolts and studs, and the finish is bronze because that is the base metal. That is why it is specified for grounding, marine, and corrosive or wet locations where a zinc plated steel bolt would corrode out.
3) Does this silicon bronze bolt meet Buy American or ARRA requirements on a federally funded job?
Metallics lists the JBBH40 as both Buy American compliant and ARRA compliant. Country of origin is China, so if your specification demands domestic melt and manufacture rather than the compliance designation alone, confirm which test your project is applying.
4) Will a standard 3/4 inch wrench or socket fit the head of this Metallics bolt?
Yes. The hex head measures 0.736 to 0.750 inch across the flats, which is a 3/4 inch wrench size, and head height runs 0.302 to 0.323 inch. Dimensions follow ASME B18.2.1, the standard hex bolt dimensional spec, so it drops into standard clearances and takes standard sockets.
5) How is the JBBH40 packaged, and can I buy fewer than 50?
It ships as a jar of 50, and 50 count is the order minimum, so a jar is the smallest buy. Other sizes and quantities in the BBH and JBBH series are available by request if 50 of this length is not what the job needs.
6) Why would I use a bronze hex bolt instead of galvanized steel for a grounding connection?
Silicon bronze is used where the connection has to stay conductive and corrosion free, and where it is bolting to copper or bronze hardware, ground plates, bus, water pipe clamps, or submerged and marine fittings. Steel in contact with copper sets up galvanic corrosion at the joint; bronze does not. This 1/2-13 x 3-3/4 size is the long shank option when you are stacking lugs, washers, and a thick plate or pipe clamp. It is carried as electrical department material for exactly that work.
7) Does the jar of 50 include nuts and washers?
No. The JBBH40 is bolts only, 50 hex bolts in the jar. Order matching 1/2-13 silicon bronze hex nuts and bronze washers separately if you want the whole joint in the same metal, which is normal practice so you are not mixing steel into a bronze connection.
8) How much does a jar of 50 of these 1/2 inch bronze bolts weigh for shipping?
A jar runs 11.48 lbs, with jar dimensions of 7.25 by 4.5 by 4.5 inches. Worth knowing if you are ordering several jars to a lift or carrying them up to a roof.
How fast can I get the Metallics JBBH40 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 JBBH40 come with a warranty?
Absolutely. The Metallics JBBH40 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 JBBH40?
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