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Bolts 3/8-16 x 1-1/2 Carriage Blt SS (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 B18.5
- Division:
- Electrical H1
- Fastener Head Type:
- Mushroom
- Fastener Head Width:
- 0.782 - 0.844 in.
- Fastener Height:
- 0.188 - 0.208
- Fastener Length:
- 1/1/02
- Fastener Width:
- 0.368 - 0.388
- Field Application:
- Electrical, Plumbing, Heating, Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- ASTM F593
- 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:
- 100
- Order Minimum Uom Imperial:
- JR
- Outside Diameter:
- 0.329 - 0.388 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 2726 g
- Product Width:
- 88.9 MM
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 16
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- CB and JCB
- Product Details:
- Hexagonal Bolt
- Product Material:
- 18-8 Stainless Steel
Metallics JCB23SS – Frequently Asked Questions
1) What thread does the Metallics JCB23SS carriage bolt take, and what nut do I need?
It's a 3/8-16 UNC right-hand thread, 16 threads per inch, made to ANSI/ASME B1.1. Any standard 3/8-16 coarse hex nut will run on it. Nuts and washers aren't part of the jar, so order those separately.
2) Is this stainless carriage bolt OK for outdoor or damp locations?
The bolt is 18-8 stainless steel per ASTM F593, so it holds up outdoors, in damp mechanical rooms, and in washdown areas far better than plain or zinc-plated steel. For chloride-heavy exposure (coastal spray, pool chemistry, de-icing salt), 316 stainless is the step up from 18-8.
3) What size hole should I drill for this 3/8 carriage bolt?
Shank runs 0.368 to 0.388 in., with an outside diameter range of 0.329 to 0.388 in., so a 3/8 in. (0.375) bit is nominal and a 13/32 in. bit gives clearance if you want the bolt to drop through without forcing. In wood, drill at 3/8 so the square neck can pull in and lock.
4) Does the Metallics JCB23SS meet Buy American or ARRA requirements for a federal job?
No. These stainless carriage bolts are not Buy American compliant and are not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic-sourcing clause, this part won't satisfy it.
5) How big is the head on a 3/8 carriage bolt, and will it sit flush?
The mushroom head measures 0.782 to 0.844 in. across and 0.188 to 0.208 in. high. That's a wide, low dome that sits proud of the surface rather than flush, and it's smooth with no driver slot, so once the square neck bites into the wood or the square hole, the bolt can only be turned from the nut side. That's the whole point of a carriage bolt in tamper-exposed locations like gates, strut racks, and exterior panels.
6) How many bolts come in a jar, and can I buy fewer than 100?
The JCB23SS ships as a jar of 100 pieces, and the jar is the minimum order unit. If you need a different count or a different length in the same CB and JCB carriage bolt line, other sizes and quantities are available by request.
7) Is this bolt made to a recognized dimensional standard for submittals?
Dimensions follow ASME B18.5, the standard for round head bolts including carriage bolts, and the material conforms to ASTM F593 for stainless steel bolts. Threads are to ANSI/ASME B1.1. Those three are what a submittal reviewer usually wants to see on a stainless carriage bolt.
8) What trades actually use these stainless carriage bolts?
Metallics lists the application as electrical, plumbing, heating and air conditioning work. In practice that's hanger and strut assemblies, equipment curbs and rails, condenser stands, gate and fence hardware, and anywhere a smooth non-removable head on the exposed side matters. The stainless makes it suitable for rooftop and outdoor mounting where plated steel would rust out.
How fast can I get the Metallics JCB23SS delivered?
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Does the Metallics JCB23SS come with a warranty?
Absolutely. The Metallics JCB23SS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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