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Bolts 1/2-13 x 2 Carriage Blt Galv (Jar 25)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Head Type:
- Mushroom
- Fastener Head Width:
- 1.032- 1.094 in.
- Fastener Height:
- 0.250 - 0.270
- Fastener Length:
- 2
- Fastener Width:
- 0.492 - 0.515
- Field Application:
- Electrical, Plumbing, Heating, Air Conditioning Industries
- Hardness:
- Rockwell B70-B100
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Carriage_Bolt_St-Zn_and_Galv.pdf
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.483 - 0.515 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 6332 g
- Product Width:
- 88.9 MM
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 13
- Yield Strength:
- 36000 psi minimum
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- CB and JCB
- Product Finish:
- Galvanized
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JCB33G – Frequently Asked Questions
1) What size and thread does the Metallics JCB33G carriage bolt have?
The JCB33G is a 1/2-13 carriage bolt, 2 inches long. The 13 means 13 threads per inch, which is standard UNC coarse thread for a 1/2 inch bolt, and the thread is right hand. Shank measures 0.492 to 0.515 inch across, so it drops into a 1/2 inch drilled hole.
2) Do nuts and washers come with the Metallics JCB33G carriage bolts?
No. The jar holds bolts only. A carriage bolt needs a 1/2-13 hex nut on the back side, and a flat washer under that nut is normal practice when bolting into wood so the nut does not crush the fibers. Order those separately in a matching galvanized finish so you are not mixing coatings.
3) What strength grade are these 1/2 inch carriage bolts, and are they strong enough for structural hanging?
Yield strength is 36,000 psi minimum with hardness of Rockwell B70 to B100, which is low-carbon commercial bolt territory, not a heat-treated high-strength bolt. Fine for conduit racks, strut, equipment mounting, and general electrical, plumbing, and HVAC support work. If an engineer has specified a higher grade for a structural connection, this is not that bolt.
4) Do these Metallics carriage bolts meet Buy American or ARRA requirements on a public project?
No. The JCB33G is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a federally funded job with domestic-sourcing language, you will need a domestically produced fastener instead.
5) Can these galvanized carriage bolts be used outdoors or in damp locations?
They are steel with a galvanized finish, which is the finish used for exterior and damp-location work such as strut, standoffs, and equipment anchorage outside the building envelope. For continuously wet or corrosive chemical environments, stainless is the better call.
6) How much clearance does the carriage bolt head need, and how far does it stick up?
The head is a mushroom (round) style, 1.032 to 1.094 inches across with a height of 0.250 to 0.270 inch. Budget a little over an inch of flat bearing area around the hole and about a quarter inch of standoff above the surface. The square shoulder under the head is what keeps the bolt from spinning while you tighten the nut from the back side.
7) How many bolts are in a jar of JCB33G, and can I buy fewer?
They ship 25 to a jar, and 25 each is the order minimum, so the jar is the smallest buy. Other quantities can be requested if you need a bulk pack for a larger run.
8) Should I use a carriage bolt or a hex bolt for bolting a bracket to a wood post?
Carriage bolt, when one face has to stay smooth or you can only reach one side with a wrench. The mushroom head sits nearly flush with no wrenching flats, and the square shoulder bites the wood so the bolt holds itself while you turn the nut. A hex bolt is the choice when you need to torque from the head side or when you are bolting metal to metal where a square shoulder has nothing to grip.
How fast can I get the Metallics JCB33G delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JCB33G come with a warranty?
Absolutely. The Metallics JCB33G 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 JCB33G?
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