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Bolts 3/8-16 x 1 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:
- 1
- Fastener Width:
- 0.368 - 0.388
- 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:
- 50
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.329 - 0.388 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 3.6 in
- Product Length:
- 3 in
- Product Weight:
- 1061 g
- Product Width:
- 76.2 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:
- 316 Stainless Steel
Metallics JCB56SS316 – Frequently Asked Questions
1) What thread size and pitch is the Metallics JCB56SS316 bolt?
It is a 3/8-16 bolt, 1 inch long: 16 threads per inch in the UNC coarse series, cut to ANSI/ASME B1.1. Shank measures 0.368 to 0.388 inch across, so it drops through a standard 3/8 inch clearance hole. It mates with any standard 3/8-16 nut, and you'll want a matching 316 stainless nut and washer to avoid mixing metals.
2) Is 316 stainless needed, or is 18-8 good enough for outdoor strut and conduit work?
These Metallics 3/8-16 bolts are 316 stainless steel, which is the grade to specify for coastal, chemical, wastewater, pool, and roadside de-icing environments where 18-8 (304) pits. Material conforms to ASTM F593. For dry interior work 18-8 is normally sufficient, so 316 is the upgrade you pay for when chlorides are in play.
3) How many bolts come in a jar, and can I buy fewer than 50?
They ship in a jar of 50 and the order minimum is 50 each, so 50 is the smallest quantity. Metallics notes other sizes and quantities are available by request if 1 inch length or the 50-count jar doesn't suit the job.
4) Will a 1 inch long 3/8-16 bolt be long enough for my assembly?
One inch of overall bolt length is short, so plan your stack-up: with a nut and washer taking up roughly a half inch of that, you have limited grip left. It suits thin-section work such as bolting strut fittings, brackets, or two sheet-metal or light plate layers. For channel sandwiches, wood members, or anything over about half an inch of combined material, step up to a longer length in the same series.
5) Does this Metallics bolt qualify for a Buy American or ARRA funded project?
The JCB56SS316 carries both Buy American and ARRA compliant designations in Metallics' product data. Country of origin is listed as multiple, so if your specification requires documented origin on a per-shipment basis, request the certification with the order.
6) What dimensional standard do these 3/8-16 stainless bolts follow, and will they match my existing hardware?
Dimensions follow ASME B18.5 and threads follow ANSI/ASME B1.1, so the bolt interchanges with any other standards-made 3/8-16 UNC fastener on the job. Head width runs 0.782 to 0.844 inch and head height 0.188 to 0.208 inch, which matters where the head seats inside a strut channel or under a close-fitting clamp.
7) What hole size do I need to drill for these 3/8-16 bolts?
Outside diameter is given as 0.329 to 0.388 inch, so a nominal 3/8 inch bolt. A 7/16 inch hole gives normal clearance; 13/32 gives a close fit if you need the assembly located precisely. Drilling only 3/8 will bind.
How fast can I get the Metallics JCB56SS316 delivered?
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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 JCB56SS316 come with a warranty?
Absolutely. The Metallics JCB56SS316 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 JCB56SS316?
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