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Nuts 1/2-13 Hvy Hx Ny-Ins Locknut 1 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 B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.579 - 0.609 in.
- Fastener Head Width:
- 0.736 - 0.752 in.
- Fastener Height:
- 0.464
- Hardness:
- Rockwell B95-C35
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nylon_Insrt_Lck_Nut_Heavy_Hex_18-8_SS.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 4.76 lbs
- Product Width:
- 3.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 13
- 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 Details:
- Hexagonal Nylon Insert Lock Nut
- Product Material:
- 18-8 Stainless Steel
Metallics JNYN166SSHH – Frequently Asked Questions
1) Is a nylon insert locknut suitable for outdoor or wet electrical installations?
The nut body is 18-8 stainless steel, which is the usual choice for damp, outdoor, and washdown locations where a plated carbon steel nut would rust. The limit is heat, not moisture: the nylon insert is a polymer, so for high temperature service use an all metal prevailing torque nut or a jam nut and lock washer instead.
2) Does this heavy hex locknut meet a recognized dimensional standard for submittals?
It is made to ASME B18.16.6, the dimensional standard for prevailing torque and nylon insert lock nuts, with threads to ANSI/ASME B1.1. Hardness is listed at Rockwell B95 to C35. Those three values are what a spec reviewer or inspector on an institutional job will want on the submittal.
3) Can I use the Metallics JNYN166SSHH on a Buy American or ARRA funded project?
Metallics lists this locknut as both ARRA compliant and Buy American compliant. Country of origin is China. On federally funded work the compliance flag and the origin are both usually required on the submittal, so put both on the sheet rather than one.
4) How many 1/2-13 stainless nylon insert locknuts come in a jar, and is there a minimum order?
They ship in a jar of 100 count, and 100 is also the order minimum, so one jar is the smallest buy. Jar weight is 4.76 lbs. Metallics offers other sizes and quantities of the JNYN series on request if 1/2-13 is not the size you need.
5) Should I use a nylon insert locknut or a plain nut with a lock washer on vibrating equipment?
For equipment that vibrates, rooftop units, motors, transformer frames, generator skids, the nylon insert nut is the simpler answer: the insert grips the bolt threads and resists back off without needing a second component in the stack. Use a plain nut plus washer where temperature rules out nylon, or where the joint gets taken apart and reassembled many times, since a nylon insert loses holding force with repeated reuse.
6) Will stainless locknuts cause galling on stainless bolts?
18-8 on 18-8 can gall and seize if you run it down fast and dry. Drive slowly, or use an anti seize compound on the bolt threads. The nylon insert on this JNYN nut adds drag in the last few turns, which makes it easy to mistake insert friction for seating torque, so go by a torque value rather than by feel.
How fast can I get the Metallics JNYN166SSHH 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 JNYN166SSHH come with a warranty?
Absolutely. The Metallics JNYN166SSHH 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 JNYN166SSHH?
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