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Nuts 5/16-18 Hx Jam Nut St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- Made to American Standard Dimensions
- Jam nuts are tightened against the work surface and a full heavy hex nut is tightened the heavy hex jam nut to keep it from loosening.
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- 16-Mar in.
- Fastener Head Width:
- 0.489 - 0.500 in.
- Fastener Height:
- 0.258 - 0.273
- Fastener Width:
- 0.557 - 0.577
- Field Application:
- Width is Wrench Size
- Hardness:
- Rockwell B95-C32
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Jam_Nut_Steel_Zinc.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 0.76 lbs
- Product Width:
- 3 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 18
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Jam Nut
- Type2:
- Hexagonal Jam Nut
- Series:
- JN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Jam Nut
- Product Material:
- Steel
Metallics JN164J – Frequently Asked Questions
1) What thread size is the Metallics JN164J jam nut, and will it fit a 5/16 inch bolt or threaded rod?
The JN164J is a 5/16-18 hex jam nut, so it threads onto 5/16 inch bolts, studs, or rod with 18 threads per inch (standard UNC coarse for that diameter). It will not run on 5/16-24 fine thread.
2) How thin is a jam nut compared to a standard nut, and will it clear in a tight space?
Height on the JN164J measures 0.258 to 0.273 inch, roughly half the stack of a full-height 5/16 nut. That is why it works where threaded rod runs close to a box, strut, or panel and a standard nut would not clear.
3) How do I use a jam nut so a bolted connection does not vibrate loose?
Run the jam nut down against the work surface first, then tighten a full hex nut against the jam nut. The two nuts load against each other and that is what keeps the joint from backing off under vibration. You need to order the full nuts separately; a jar of JN164J is jam nuts only.
4) Are these zinc plated steel nuts okay for outdoor or damp locations?
The JN164J is steel with a zinc finish, which suits dry indoor and protected electrical work. Zinc plating is a sacrificial coating, not stainless, so for exposed exterior, wet, or corrosive runs step up to hot dip galvanized or stainless hardware instead.
5) Do Metallics JN164J jam nuts meet Buy American requirements on a federal job?
Metallics lists the JN164J as both Buy American compliant and ARRA compliant. Country of origin is recorded as multiple, so request the mill or origin documentation for the specific lot if your submittal needs it.
6) How many nuts come in a jar of Metallics JN164J, and what is the minimum order?
They ship 100 to a jar, and 100 count is the order minimum. Jar weight is 0.76 lbs.
How fast can I get the Metallics JN164J 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 JN164J come with a warranty?
Absolutely. The Metallics JN164J 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 JN164J?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JN164J from ZenSupply?
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and
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