SKU: 87169144133

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

Sale price$13.49 Regular price$14.99
Save 10%

Pay in installments of $3.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 22 - Sep 27

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 5/16 in. Zinc-Plated Steel USS Whiz Lock Nut, 100-Pack5 16 in. Zinc Plated USS Whiz Lock Nut (100 Pack) Secure assemblies with these Hillman USS Whiz lock nuts. Made from zinc plated steel for corrosion resistance, they feature integrated serrations that bite into the mating surface to resist loosening from vibration. Ideal for general construction, automotive, and machinery applications using 5 16 18 threads. Key Features: Vibration Resistance: Built in serrations provide strong locking action without

5/16 in. Zinc-Plated USS Whiz Lock Nut (100-Pack)

Secure assemblies with these Hillman USS Whiz lock nuts. Made from zinc-plated steel for corrosion resistance, they feature integrated serrations that bite into the mating surface to resist loosening from vibration. Ideal for general construction, automotive, and machinery applications using 5/16-18 threads.


Key Features:

  • Vibration Resistance: Built-in serrations provide strong locking action without separate washers
  • Durable Build: Zinc-plated steel resists rust and wear for indoor/outdoor use
  • USS Threading: 5/16-18 coarse threads for common fastening applications
  • Flange Design: Distributes load and helps protect mating surfaces
  • Bulk Value: 100-pack for jobsites, shops, and replenishing inventory

Specifications Table:

Specification Details
Pack Quantity 100
Thread Size 5/16-18 (USS coarse)
Type Whiz lock nut / Serrated flange lock nut
Material Steel
Finish Zinc-plated
Brand Hillman

Frequently Asked Questions (FAQ):

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


Q: Do I need a separate lock washer?
A: No. The serrated flange provides the locking action, eliminating the need for a lock washer in most applications.


Q: Are these suitable for outdoor use?
A: Yes. The zinc plating offers corrosion resistance; for harsh or marine environments, consider stainless or higher-grade coatings.


Q: Can these be used with slotted or oversized holes?
A: The flange helps distribute load, but for oversized holes ensure proper washer or hardware as needed.


Q: What tools are required?
A: Install with a standard wrench or socket sized for the hex across flats.


Industrial Grip with a Clean, Polished Finish

This serrated flange nut adds a sleek, utilitarian note to hardware details, catching the light with its zinc sheen. I love how the integrated flange creates a crisp, purposeful silhouette while delivering serious hold. Style it on exposed hardware moments—think garage shelving or workshop fixtures—for a refined, engineered look. It’s a small luxury in the language of precision.


Lock in reliable hold—add this 100-pack of 5/16-18 zinc-plated Whiz lock nuts to your toolkit 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: 87169144133

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
C. Larson
Bozeman, US
★★★★★ 5
Worked perfectly for the wedding we were going to!
Color: Pink, Size: XX-Large
Shirt is true to size, perfect color for the wedding we bought it for and exactly what we were looking for!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
T
Verified Purchase
Thomas B. Murphy
Fort Morgan, US
★★★★★ 5
Don't miss out! Love these shirts!
Color: Navy Blue-grey, Size: Large
Love my new shirt's! Great quality!! Fit well! Very soft!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
T
Verified Purchase
tji21
Omaha, US
★★★★★ 5
great flannel
Color: Orange, Size: XX-Large
finally, a flannel shirt that is not made like all other cookie-cutter flannels. this one a bit different. body is a bit shorter (1-1.5”). and sleeves, a touch longer, for each size. plus, it’s perfect thickness for early mornings in summer, or even mid-day in fall. awesome flannel shirt…. just heads up… order one size bigger than normal, and you’ll love this flannel. (especially for us men & women who have a slightly longer arms than most)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
S
Verified Purchase
Shantel Daudelin
Pawtucket, US
★★★★★ 5
Fit is true to size
Color: Green, Size: Large
Great quality the fit was as expected soft material
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
M
Verified Purchase
Melissa Tanner
Alexandria, US
★★★★★ 4
Nice shirt
Color: Blue, Size: XX-Large
Size is fairly accurate. Bought it for my husband, who is difficult to fit!! The shirt is durable and soft. Nice purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025

recommand products