You may also like
Nuts 1/4-20 G8 Hx Ny-Ins Locknut St St-Yz (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ASME B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.298 - 0.328 in.
- Fastener Head Width:
- 0.430 - 0.439 in.
- Fastener Height:
- 0.225
- Grade:
- 8
- Language Code:
- EN
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 20
- 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:
- JG8NYN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nylon Insert Lock Nut
- Product Color:
- Yellow
- Product Material:
- Steel
Metallics JG8NYN163 – Frequently Asked Questions
1) Will the Metallics JG8NYN163 locknut thread onto a 1/4-20 bolt?
Yes. The JG8NYN163 is a 1/4-20 nylon insert lock nut, 20 threads per inch, cut to ANSI/ASME B1.1 unified thread standard. That is standard 1/4 inch UNC, so it mates with any 1/4-20 UNC bolt, stud or threaded rod.
2) Is a Grade 8 nylon insert locknut strong enough to pair with a Grade 8 bolt?
Yes. The JG8NYN163 is a Grade 8 steel nut, which is the grade you want on a Grade 8 bolted joint so the nut is not the weak link. For vibration-prone equipment mounts, conduit racking and motor or fan assemblies, the nylon collar resists back-off without needing a thread locker.
3) Do Metallics JG8NYN locknuts meet Buy American or ARRA requirements for a public project?
No. The JG8NYN163 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic sourcing clause, this nut will not satisfy it and you need a domestically produced fastener.
4) Can nylon insert lock nuts be reused, or do I need new ones each time?
The nylon collar in these 1/4-20 Grade 8 locknuts deforms around the bolt thread to create the locking friction, and that deformation is largely permanent. Trade practice is to treat them as single-use for any joint you care about. Buying the 100-count jar means you have replacements on hand rather than reinstalling a spent nut.
5) Will a nylon insert locknut hold up in a hot location like a rooftop unit or near a motor?
The nylon element is the limiting factor on heat. Prevailing-torque metal locknuts or a nut and jam nut are the better call on high-temperature equipment such as boiler rooms, flue-adjacent racking or hot motor housings. For ambient-temperature electrical work, panel and strut mounting, enclosure and device assembly, the nylon insert type is the usual choice.
6) Is the yellow zinc finish on these locknuts OK for outdoor or damp electrical work?
The JG8NYN163 is steel with a yellow zinc finish, a sacrificial plating that handles indoor and sheltered exterior service. It is not stainless. For continuous wet exposure, coastal air or direct ground contact, specify a stainless or hot-dip galvanized locknut instead; zinc plating will eventually bloom white and then rust in those conditions.
7) How are these 1/4-20 locknuts packaged, and what is the smallest quantity I can buy?
They ship in a jar of 100 pieces, and 100 count is the minimum order. The jar keeps them contained on a service truck or in a parts bin rather than loose in a bag.
8) I need a different size or a bigger box of nylon insert locknuts than 1/4-20 in a 100 jar. Is that possible?
Yes, the JG8NYN series runs beyond this one size. Other diameters, thread sizes and pack quantities in the same Grade 8 yellow zinc nylon insert locknut are available by request, so a bulk box for a large racking or strut job can be sourced rather than buying multiple jars.
How fast can I get the Metallics JG8NYN163 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 JG8NYN163 come with a warranty?
Absolutely. The Metallics JG8NYN163 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 JG8NYN163?
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
Why buy the Metallics JG8NYN163 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.