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Nuts 7/16-14 Hx Ny-Ins Locknut St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- Made to American Standard Dimensions
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Country Of Origin:
- MUL
- Dimensional Standard:
- ASME B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.438 - 0.468 in.
- Fastener Head Width:
- 0.616 - 0.627 in.
- Fastener Height:
- 0.324
- Field Application:
- Width is Wrench Size
- 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:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 3.6 in
- Product Length:
- 3 in
- Product Weight:
- 2.15 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 14
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- 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 Color:
- Silver
- Product Material:
- Steel
Metallics JNYN172 – Frequently Asked Questions
1) What thread does the Metallics JNYN172 lock nut take, and will it fit a 7/16 inch coarse-thread bolt?
The JNYN172 is a 7/16-14 nylon insert lock nut, right-hand thread, cut to UNC (coarse) per ANSI/ASME B1.1. At 14 threads per inch it mates with standard 7/16 inch coarse-thread bolts, rod, and studs. It will not run onto 7/16-20 fine thread.
2) Is the Metallics JNYN172 locknut Buy American and ARRA compliant for a public works job?
Yes on both counts. Metallics lists the JNYN172 as Buy American compliant and ARRA compliant, which is what a government, school, or transit submittal usually asks for. Country of origin is recorded as multiple.
3) Does this locknut meet a dimensional spec I can put on a submittal?
Dimensions are to ASME B18.16.6, the standard for prevailing torque lock nuts, and threads are to ANSI/ASME B1.1. Metallics also states the nut is made to American Standard dimensions, so it will interchange with any other B18.16.6 hex nylon insert nut of the same 7/16-14 size.
4) Can a nylon insert lock nut be reused if I have to take the connection apart?
Nylon insert locknuts like the JNYN172 hold by deforming a nylon collar against the bolt threads, so the grip drops off each time it is backed off. Standard trade practice is one use, maybe two in non-critical work. Buying them 100 to a jar makes replacing them on reassembly cheap enough that there is no reason to reuse.
5) Will a zinc plated steel nylon insert locknut hold up outdoors or in a damp mechanical room?
Body is steel with a zinc finish, silver in appearance. Zinc plating handles indoor, damp indoor, and sheltered exterior service, which covers most strut, panel, and equipment mounting work. For direct weather exposure, washdown, coastal, or chemical environments, specify stainless or hot dip galvanized instead. Note also the nylon collar limits these to moderate temperature service, so keep them off hot equipment.
6) How many 7/16-14 nylon insert locknuts come in a jar, and can I buy fewer?
They ship 100 to a jar, and 100 count is the order minimum, so a jar is the smallest buy. Metallics does offer other sizes and quantities on request if a job needs a different pitch, size, or pack.
7) Should I use a nylon insert locknut or a regular hex nut with a lock washer on vibrating equipment?
On anything that vibrates, motors, fans, rooftop units, conduit racks on a mechanical floor, the nylon insert nut is the better choice. The collar grips the bolt threads itself and keeps prevailing torque whether or not the joint stays fully tight, where a split lock washer relies on clamp load staying up. Trade off: the JNYN172 is single use in practice and temperature limited by the nylon, so for high heat go to an all metal locknut or jam nut.
8) How much does a jar of 100 Metallics 7/16-14 locknuts weigh for shipping or a parts cart?
A jar of 100 comes in at 2.15 lbs, in a container measuring 3 x 3 x 3.6 inches. Small enough to keep a couple of jars on the van without eating bin space.
How fast can I get the Metallics JNYN172 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 JNYN172 come with a warranty?
Absolutely. The Metallics JNYN172 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 JNYN172?
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
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