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Bolts 1/2-13 X 8 Carriage Blt St-zn (Box 25)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.5-1990
- Division:
- Electrical H1
- Fastener Head Type:
- Mushroom
- Fastener Head Width:
- 1.032- 1.094 in.
- Fastener Height:
- 0.250 - 0.270
- Fastener Length:
- 8mm
- Fastener Width:
- 0.492 - 0.515
- Field Application:
- Electrical, Plumbing, Heating, Air Conditioning Industries, Concrete, Masonry
- Hardness:
- Rockwell B70-B100
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Carriage_Bolt_18-8_SS_and_316_SS.pdf
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- CT
- Outside Diameter:
- 0.483 - 0.515 IN
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 6.13 in
- Product Length:
- 9 in
- Product Weight:
- 9.92 lbs
- Product Width:
- 9 in
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 60000 psi minimum
- Thread Per Inch:
- 13
- Yield Strength:
- 36000 psi minimum
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Carriage Bolt
- Type2:
- Carriage Bolt
- Series:
- CB and JCB
- Product Finish:
- Zinc
- Product Details:
- Carriage Bolt
- Product Material:
- Steel
Metallics CB9 – Frequently Asked Questions
1) What thread size and pitch is the Metallics CB9 carriage bolt?
The CB9 is a 1/2-13 carriage bolt, meaning a 1/2 inch diameter body with 13 threads per inch, which is the standard UNC coarse pitch for 1/2 inch. It takes a standard 1/2-13 hex nut. Measured shank diameter runs 0.483 to 0.515 inch.
2) What is the strength rating on the Metallics CB9 carriage bolt?
Minimum tensile strength is 60,000 psi with a 36,000 psi minimum yield, and hardness is Rockwell B70 to B100. That is low-carbon unhardened bolt territory, fine for general structural wood framing, strut, hangers, and equipment mounting. If your drawing calls out a Grade 5 or Grade 8 fastener, this is not a substitute.
3) What standard do these carriage bolts conform to, and will they clear a Buy American spec?
Dimensionally the CB9 is built to ASME B18.5-1990, the round head bolt standard, so head and shoulder geometry matches anything else specified to that standard. It is flagged Buy American compliant and ARRA compliant, which is what federal, education, and municipal procurement usually needs on the submittal.
4) How many 1/2-13 x 8 carriage bolts come in a box, and are nuts and washers included?
25 bolts per box, and that box of 25 is the order minimum. Bolts only, no nuts or washers, so order 1/2-13 hex nuts and 1/2 inch washers separately. On wood, plan a washer under the nut so it does not crush into the face.
5) Is a zinc plated steel carriage bolt okay for outdoor or wet locations?
The CB9 is steel with a zinc finish, which is a dry-to-damp-location plating. It holds up fine inside a building, in a mechanical room, or in covered exterior work, but direct weather exposure, treated lumber, coastal air, or anything washed down regularly will take the zinc off. For those, go to a stainless carriage bolt in 18-8 or 316 instead.
6) Can carriage bolts be used for mounting into concrete or masonry?
The CB9 is listed for electrical, plumbing, heating and air conditioning work as well as concrete and masonry applications. Keep in mind it is a through-bolt, not an anchor: in concrete or block it goes through a drilled-through wall or into a sleeve or insert sized for 1/2-13 thread. It will not hold on its own in a blind hole.
How fast can I get the Metallics CB9 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 CB9 come with a warranty?
Absolutely. The Metallics CB9 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 CB9?
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 CB9 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.