SKU: 20370824665

Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack

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Description

Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack5 8 in. Zinc Plated Nylon Lock Nuts (25 Pack) These Hillman USS nylon lock nuts provide secure, vibration resistant fastening for heavy duty projects. Made of steel with a zinc plated finish, they offer corrosion protection and a reliable hold thanks to the compressible nylon insert. Key Features: Vibration Resistant Hold: Nylon insert locks the nut in place without a lock washer Corrosion Protection: Durable zinc plated steel construction for long

5/8 in. Zinc-Plated Nylon Lock Nuts (25-Pack)

These Hillman USS nylon lock nuts provide secure, vibration-resistant fastening for heavy-duty projects. Made of steel with a zinc-plated finish, they offer corrosion protection and a reliable hold thanks to the compressible nylon insert.


Key Features:

  • Vibration-Resistant Hold: Nylon insert locks the nut in place without a lock washer
  • Corrosion Protection: Durable zinc-plated steel construction for long-lasting performance
  • Coarse Thread Compatibility: 5/8-11 USS thread fits standard coarse-thread bolts
  • Project-Ready Pack: Convenient 25-piece boxed package
  • Versatile Use: Ideal for automotive, machinery, and structural applications

Specifications Table:

Specification Details
Brand Name Hillman
Callout Size 5/8 inch
Thread Size 5/8-11
Thread Type Coarse (USS)
Finish Zinc Plated
Material Steel with nylon insert
Unit of Measurement USS
Number in Package 25
Packaging Type Boxed
Package Height 2 in
Package Width 4.5 in
Package Length 3.5 in
Package Weight 2.1 lbs

Frequently Asked Questions (FAQ):

Q: What thread size do these nuts fit?
A: They fit 5/8-11 coarse (USS) thread bolts.


Q: Do I still need a lock washer?
A: No. The nylon insert provides locking action, eliminating the need for a lock washer.


Q: Are they suitable for outdoor use?
A: Yes. The zinc-plated finish helps resist corrosion, making them suitable for indoor and outdoor applications.


Q: How many nuts are included?
A: 25 pieces per retail package.


Q: What material are the nuts made from?
A: Steel nuts with a zinc-plated finish and nylon insert.


A Polished, Industrial Essential

These zinc-plated lock nuts add a subtle, gleaming precision to any build, marrying rugged steel with a chic metallic finish. The nylon insert is the quiet hero—streamlined, secure, and resilient against vibration. Style them with black oxide bolts for a striking contrast and a clean, architectural look. A small detail with big impact, they’re indispensable for refined, sturdy construction.


Secure your projects with dependable, corrosion-resistant locking—add this 25-pack of Hillman nylon lock nuts to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20370824665

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4.8 ★★★★★
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I
Ian
Pawtucket, US
★★★★★ 5
Light, comfy, and a brand you can trust with your feet
Size: 3.5 Big Kid, Color: Black/White
My son tears through shoes and somehow they're perpetually untied, no matter what we do. These are great as they don't need to be tied but look laced up, are very light and cushiony, and just look great so they go with everything. Saucony is also a great trusted brand that I've run a few marathons in myself, so I figured, let's try a pair and see how long they last. It's only been a few days but I'm getting good reviews from my son and they're his new go to pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2025
E
Verified Purchase
ERyder
Los Angeles, US
★★★★★ 5
Great sneaker
Size: 4.5 Big Kid, Color: Navy/Silver
Comfortable and has good support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
S
Verified Purchase
Socal Viking
Whiting, US
★★★★★ 5
Great shoe seems supportive
Size: 3.5 Big Kid, Color: Black/White
Bought the shoe because it was recommended by a podiatrist for young kids and I'm pleased with what seems like good support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2025
A
Verified Purchase
Abby S.
Bozeman, US
★★★★★ 5
Good fit. Good support. Good for my new runner!
The quality definitely meets our expectations. The price point is pretty good; I can't swallow adult-sized prices for kid-sized shoes. Delivery was early...which my son really appreciated!
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Reviewed in the United States on November 24, 2024
N
Verified Purchase
Nick Fitz
Port Orchard, US
★★★★★ 1
Falling apart
Size: 5 Big Kid, Color: Teal/Periwinkle, Size: 5 Big Kid, Color: Teal/Periwinkle
I bought these two weeks ago for my daughter to train and use for a mini triathalon she is doing and the sole tread are already coming apart in several areas. Including the toe. Not worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026

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