Hillman 5/16 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack
SKU: 82544755218

Hillman 5/16 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack

Sale price$11.24 Regular price$12.49
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Description

Hillman 5/16 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack5 16 in. USS Nylon Lock Nuts, Zinc Plated Steel (100 Pack) These Hillman nylon insert lock nuts provide reliable, vibration resistant fastening for general construction and repair. Made of steel with a zinc plated finish and a nylon insert, they resist corrosion and stay tight without separate lock washers. Key Features: Vibration Resistant Hold: Nylon insert locks the nut to prevent loosening without lock washers Durable Construction: Steel body with

5/16 in. USS Nylon Lock Nuts, Zinc-Plated Steel (100-Pack)

These Hillman nylon insert lock nuts provide reliable, vibration-resistant fastening for general construction and repair. Made of steel with a zinc-plated finish and a nylon insert, they resist corrosion and stay tight without separate lock washers.


Key Features:

  • Vibration-Resistant Hold: Nylon insert locks the nut to prevent loosening without lock washers
  • Durable Construction: Steel body with zinc-plated finish for corrosion resistance
  • Standard Sizing: 5/16-18 coarse (USS) thread fits common bolts and studs
  • Bulk Convenience: 100-piece pack for jobsites, workshops, and restocking
  • Versatile Use: Ideal for machinery, automotive, and general fastening applications

Specifications Table:

Specification Details
Callout Size 5/16 inch
Thread Size 5/16-18
Thread Type Coarse (USS)
Material Steel with nylon insert
Finish Zinc plated
Number in Package 100
Packaging Type Boxed
Category Nuts
Package Dimensions (L x W x H) 3.1 in x 3.1 in x 2 in
Package Weight 1.2 lb

Frequently Asked Questions (FAQ):

Q: What thread size are these lock nuts?
A: They are 5/16-18 coarse thread (USS).


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


Q: What materials are these made from?
A: They have a steel body with a zinc-plated finish and a nylon insert.


Q: How many nuts come in the box?
A: 100 pieces.


Q: Are these suitable for outdoor use?
A: The zinc plating offers basic corrosion resistance; for harsh environments, consider stainless or additional protection.


Quiet Strength in a Polished Finish

These nylon lock nuts bring a tailored precision to any build—small details that make the whole composition feel intentional. I love the subtle sheen of zinc-plated steel against raw timber or matte black hardware. Use them to secure custom shelving brackets or a sculptural light fixture where reliability matters as much as aesthetics. A chic, hardworking essential for elevated, enduring spaces.


Secure your next project with dependable, corrosion‑resistant hold—add this 100‑pack of Hillman nylon lock nuts to your cart now.

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: 82544755218

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Alban Zogaj
Phoenix, US
★★★★★ 4
Great shirts have to iron first
Size: XX-Large Tall, Color: Black
They feel great the material, they’re thin, the style looks good, the length to and below my waist is good. For the cost they’re good shirts and they’re definitely loose fitting, however they shove them in a tight bag so if you plan on wearing this straight away from delivery day make sure you have an iron ready every single collar and I ordered over 7 shirts comes folded over. Took a star away for the fact they don’t pack them how you would find a higher price shirt packed and typically wear ready.
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Reviewed in the United States on December 11, 2025
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God’s own
Bozeman, US
★★★★★ 5
Simple and nice.
Size: 4X-Large, Color: Dark Grey
Nice shirt. Light weight. It’s true to size and skin friendly because it is cotton.
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Reviewed in the United States on May 13, 2026
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C. Sizer
Belleville, US
★★★★★ 5
Perfect!
Size: Large, Color: Beige
Cool, comfortable, with a little stretch. Comes out of the dryer wrinkle free (be sure to hang it up right after you take it out of the dryer) price was reasonable. I measured my husband's neck and it fit exactly as it should. Good length to the back of it too, which is sometimes a problem for my husband. Do not see any quality issues. Not excessively thin or too thick. Really, I can't think of any way to improve on this shirt.
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Reviewed in the United States on April 18, 2026
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Ken Shelley
Natrona Heights, US
★★★★★ 5
Nice and light with superior softness!
Size: Large, Color: Black
Nice soft material and fits well. I also like the lightweight feel. Will most likely buy other colors in this item.
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Reviewed in the United States on April 30, 2026
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Family Man
Draper, US
★★★★★ 3
Nice shirt, but sizing isn’t ideal for big and tall builds
Size: XX-Large Tall, Color: Black
The shirt itself is decent quality and looks good, but the fit wasn’t great for me. If you’re a big and tall guy, this may not be the best option. The material has some stretch and feels comfortable, but the overall cut runs smaller and doesn’t offer much room in the shoulders or torso. It works better for slimmer or more standard builds. If the sizing works for you, it’s a nice-looking shirt. Just be aware that it’s not very forgiving in the fit if you need extra room.
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Reviewed in the United States on December 31, 2025

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