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Bolts 5/16-18 x 2-1/2 Carriage Blt SS (Jar 100)
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
- Division:
- Electrical H1
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.688 - 0.719 in.
- Fastener Height:
- 0.156 - 0.176
- Fastener Length:
- 2/1/02
- Fastener Width:
- 0.307 - 0.324
- Language Code:
- EN
- Material Standard:
- ASTM F593
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Outside Diameter:
- 0.272 - 0.324 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 2762 g
- Product Width:
- 114.3 MM
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 18
- 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 JCB21SS – Frequently Asked Questions
1) What thread does the Metallics JCB21SS 5/16 bolt use, and will a standard 5/16-18 nut fit it?
It's a 5/16-18 UNC thread, 18 threads per inch, made to ANSI/ASME B1.1. Any standard coarse-thread 5/16-18 nut will run on it. For stainless work, pair it with an 18-8 stainless nut and washer so you aren't mixing metals in the connection.
2) Is the Metallics JCB21SS bolt stainless steel, and can it be used outdoors or in damp locations?
The JCB21SS is 18-8 stainless steel, the common 300-series grade used where plated carbon steel would rust. That makes it suitable for exterior strut, fence, dock, rooftop and other wet or washdown locations. The fastener is made to ASTM F593, the material spec for stainless bolts and screws.
3) How many bolts come in a jar of Metallics JCB21SS, and can I buy fewer?
They ship 100 to a jar, and 100 count is the order minimum, so the jar is the smallest unit sold. Metallics does make other sizes and quantities in the CB and JCB series available by request if 100 of this length isn't what the job needs.
4) Do these Metallics stainless bolts meet Buy American or ARRA requirements for a public project?
The JCB21SS is flagged compliant for both Buy American and ARRA, which is what a government, school or transit procurement package usually asks for on fasteners. Country of origin is listed as multiple, so if your specification requires a single named origin on the submittal, confirm the origin of the specific lot you receive.
5) What dimensional standard do Metallics CB and JCB series bolts follow?
Dimensions are to ASME B18.5, and threads to ANSI/ASME B1.1. If a drawing calls out a B18.5 bolt in stainless, the JCB21SS answers it at 5/16-18 x 2-1/2.
How fast can I get the Metallics JCB21SS 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 JCB21SS come with a warranty?
Absolutely. The Metallics JCB21SS 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 JCB21SS?
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 JCB21SS from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.