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Nuts 3/8-16 Hx Ny-Ins Locknut St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- Eliminates the Need For a Lockwasher
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ASME B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.438 - 0.468 in.
- Fastener Head Width:
- 0.551 - 0.564 in.
- Fastener Height:
- 0.335
- Field Application:
- Areas of High Vibration, Electrical, Plumbing, Heating and Air Conditioning Industries
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nylon_Insrt_Lck_Nut_Steel_Zinc.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 3.6 in
- Product Length:
- 3 in
- Product Weight:
- 1.77 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Thread Standard:
- ANSI/ASME B1.1
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nylon Insert Lock Nut
- Type2:
- Hexagonal Nylon Insert Lock Nut
- Series:
- JNYN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nylon Insert Lock Nut
- Product Material:
- Steel
Metallics JNYN165 – Frequently Asked Questions
1) What thread size and pitch is the Metallics JNYN165 nylon insert lock nut?
It is a 3/8-16 nylon insert hex lock nut, so 16 threads per inch on a 3/8 inch bolt or rod, cut to the ANSI/ASME B1.1 thread standard. That is the standard UNC coarse pitch for 3/8 inch fasteners, so it mates with common 3/8-16 hex bolts, carriage bolts and threaded rod.
2) Will a nylon insert locknut hold up on equipment that vibrates, like rooftop HVAC units?
That is what it is intended for. Metallics lists the JNYN series for areas of high vibration and for the electrical, plumbing, heating and air conditioning industries, which covers condenser and air handler mounts, pump bases, and hanger and strut assemblies that see constant movement. One caution from general practice: nylon insert nuts are meant for single use, so replace rather than reuse them if the insert no longer drags on the thread.
3) Can I use these Metallics locknuts on a federally funded or Buy American job?
No. The JNYN165 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. For a job with domestic sourcing requirements you need a documented domestic-origin fastener instead.
4) Do I still need a lock washer if I use a nylon insert lock nut?
No. The nylon collar grips the bolt threads and resists back-off on its own, which eliminates the need for a lockwasher. That saves a part per joint and keeps stack height down in strut and channel work.
5) Are these steel locknuts coated for corrosion resistance, and can I use them outdoors?
The nut is steel with a zinc finish. Zinc plating handles indoor, damp indoor and sheltered exterior service well, but it is not a marine or continuously wet coating. For roof curbs, coastal sites or washdown areas, step up to stainless or hot dip galvanized hardware instead.
6) How many 3/8-16 locknuts come in a jar, and is there a minimum order?
They ship as a jar of 100, and the jar is the order minimum, so 100 pieces is the smallest quantity. The jar weighs 1.77 lbs. If you need a different size or a bulk count, Metallics offers other sizes and quantities by request.
7) Does the JNYN165 locknut meet a dimensional standard I can put on a submittal?
Yes. The JNYN series hex nylon insert lock nut is built to ASME B18.16.6 for nut dimensions and ANSI/ASME B1.1 for the thread form. Those are the two callouts a spec reviewer looks for on a prevailing torque nut submittal.
How fast can I get the Metallics JNYN165 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 JNYN165 come with a warranty?
Absolutely. The Metallics JNYN165 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 JNYN165?
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product
selection,
installation tips, and troubleshooting. Contact Us
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