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Nuts Nylon Lock Nut Kit St-zn (Trey 410)
Additional Notes
- Other sizes and quantities available by request
Kit Components
- (50) 1/4-20 IN Hex Nylon Insert Lock Nut
- (40) 5/16-18 IN Hex Nylon Insert Lock Nut
- (100) 8-32 Hex Nylon Insert Lock Nut
- (100) 10-32 Hex Nylon Insert Lock Nut
Features
- Eliminates the need for lock washer
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Country Of Origin:
- MUL
- Division:
- Electrical H1
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Kit Component 5:
- (100) 6-32 Hex Nylon Insert Lock Nut
- Kit Component 6:
- (20) 3/8-16 Hex Nylon Insert Lock Nut
- 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
- Number Of Pieces:
- 410
- Order Minimum Imperial:
- 1
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Tray
- Product Group:
- Fasteners
- Product Height:
- 1.25 in
- Product Length:
- 8 in
- Product Weight:
- 2.51 lbs
- Product Width:
- 4.62 in
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nylon Insert Lock Nut Kit
- Type2:
- Hexagonal Nylon Insert Lock Nut Kit
- Series:
- NYN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nylon Insert Lock Nut Kit
- Product Material:
- Steel
Metallics NYNK1 – Frequently Asked Questions
1) What sizes and quantities come in the Metallics NYNK1 nylon insert lock nut kit?
The NYNK1 tray holds 410 nuts across six thread sizes: 100 of 6-32, 100 of 8-32, 100 of 10-32, 50 of 1/4-20, 40 of 5/16-18, and 20 of 3/8-16. That spread covers machine screw sizes for device and enclosure work plus the three common fractional sizes for strut, bracket, and equipment mounting.
2) Can these lock nuts be used on a Buy American or ARRA funded job?
No. The NYNK1 kit is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. For federally funded work carrying domestic sourcing requirements, specify a domestically produced nut instead.
3) Do I still need lock washers if I use these nylon insert lock nuts?
No. The nylon insert does the locking, so the kit eliminates the need for a separate lock washer. The nylon ring deforms around the bolt thread and resists loosening from vibration, which is why these get used on panel, conduit support, and equipment mounting where a split washer would otherwise be stacked under the nut.
4) Are these lock nuts steel or stainless, and how are they finished?
Steel with a zinc finish. Zinc plated steel is fine for dry indoor electrical, plumbing, and HVAC work, but it is not a stainless or hot dip galvanized nut, so for wet exterior or corrosive duty you want a stainless or galvanized nut instead of this kit.
5) Is there a temperature limit I should worry about with nylon insert lock nuts near heating equipment?
Yes, and it is the one real limitation. The locking element is nylon, so on hot work (flue connections, heater cabinets, anything running at sustained high heat) use an all metal prevailing torque nut or a jam nut instead. The NYNK1 kit is intended for electrical, plumbing, heating and air conditioning work generally, not for high temperature joints specifically.
6) Will these nuts thread onto metric bolts?
No. Every size in the kit is inch thread: 6-32, 8-32, 10-32, 1/4-20, 5/16-18, and 3/8-16. Metric bolts need a metric nylon insert nut, which is a separate item.
7) Can nylon insert lock nuts be reused after I take the joint apart?
Treat them as limited reuse. The nylon ring is cut by the bolt thread on first installation, so holding torque drops each time it is backed off. With 410 nuts in the NYNK1 tray there is enough on hand to fit a fresh nut on reassembly rather than reinstalling a used one.
8) How does the NYNK1 kit come packaged, and will it fit in a van drawer?
It ships as a compartmented tray, 8 inches long by 4.62 wide by 1.25 high, weighing 2.51 lbs. That footprint drops into a standard van shelf bin or a service cart drawer with the sizes kept separated, which is the point of buying the assortment rather than six loose boxes.
9) Do I have to buy the Metallics NYNK1 in a multi-tray case, or can I order one?
One tray is the minimum, sold each. There is a single model in the NYN series kit, MPN NYNK1, so there are no finish or size variations to pick between, and other sizes and quantities are available by request if the assortment does not match the thread mix you run.
How fast can I get the Metallics NYNK1 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 NYNK1 come with a warranty?
Absolutely. The Metallics NYNK1 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 NYNK1?
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 NYNK1 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.