Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack
SKU: 20370824665

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

Sale price$16.64 Regular price$18.49
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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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Larry
New York, US
★★★★★ 5
Excellent product
Size: Large, Color: Light Yellow
Excellent product and service
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Reviewed in the United States on April 19, 2026
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KEllwood
Phoenix, US
★★★★★ 5
Great shirt
Size: Large, Color: Grey
Great shirt with a good price ..nice fit & nice material . Looks great when ironed !!
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Reviewed in the United States on April 1, 2026
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michael h.
Whiting, US
★★★★★ 5
Wonderful product
Size: Large, Color: Sky Blue
Great Shirts this is the second set I have bought and they wear nicely and fit well
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Reviewed in the United States on April 15, 2026
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Toby W.
Massapequa, US
★★★★★ 4
Order 1 size larger.
Size: X-Large, Color: Blue White Plaid
Nice shirt. The size is not accurate by any stretch of the imagination. I wear size xl in shirts except for this one. An xl fits like a large. Other than that I like the shirt. I would've given it 5 stars if not for the sizing. I'll give away this one and order an xxl. Just order a size above what you wear and you'll be happy.
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Reviewed in the United States on February 15, 2026
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Never received the order
Fort Morgan, US
★★★★★ 5
Nice fit
Size: X-Large, Color: Grey
Great value for the money. Would buy again.
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Reviewed in the United States on April 30, 2026

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