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Bolts 3/8-16 X 4 Carriage Blt SS (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 B18.5
- Division:
- Electrical H1
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.782 - 0.844 in.
- Fastener Height:
- 0.188 - 0.208
- Fastener Length:
- 4
- Fastener Width:
- 0.368 - 0.388
- Language Code:
- EN
- Material Standard:
- ASTM F593
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- CT
- Outside Diameter:
- 0.329 - 0.388 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 2840 g
- Product Width:
- 114.3 MM
- Sub Division:
- Electrical-E H2
- 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 JCB28SS – Frequently Asked Questions
1) Is the JCB28SS stainless suitable for outdoor or wet locations?
The material is 18-8 stainless steel to ASTM F593, the common 300 series austenitic grade used for general corrosion resistance. That makes it a normal pick for exterior conduit racks, rooftop mechanical supports, damp locations, and washdown areas where plated carbon steel would rust. For direct seawater or chloride immersion, 316 is the grade to specify instead of 18-8.
2) Do these Metallics bolts meet Buy American and ARRA requirements for a government or federally funded job?
Both the ARRA and Buy American fields on the JCB28SS carry a compliant designation, which is what a federal or state funded project submittal asks for. Country of origin is recorded as multiple, so if your specification requires a single named origin on the certification, confirm origin at order time.
3) How many bolts come in a jar of JCB28SS, and can I buy fewer than that?
The JCB28SS ships as a jar of 50 pieces, and 50 count is the order minimum, so the jar is the smallest buy. Jar packaging is the practical part for a service van or a gang box since you can pour out a handful without the pieces scattering. Other sizes and quantities in the CB and JCB line are available by request.
4) Will stainless 3/8-16 bolts react with galvanized strut or aluminum supports?
18-8 stainless against galvanized steel or aluminum sets up a galvanic couple, with the zinc or aluminum as the sacrificial side. On dry interior work it is a non-issue. In wet or exterior locations, isolate with a nylon or neoprene washer, or match the fastener to the member material. If the rest of the assembly is stainless, the 18-8 material here keeps the whole connection consistent.
How fast can I get the Metallics JCB28SS 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 JCB28SS come with a warranty?
Absolutely. The Metallics JCB28SS 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 JCB28SS?
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 JCB28SS 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.