SKU: 43390678645

Hillman Hot Dipped Galvanized Steel 5/16 in. USS Flat Washer, 100-Pack

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Description

Hillman Hot Dipped Galvanized Steel 5/16 in. USS Flat Washer, 100-Pack5 16 in. Hot Dip Galvanized USS Flat Washers (100 Pack) These Hillman USS flat washers add load distribution and prevent fasteners from biting into wood or metal. Made of steel with a hot dipped galvanized finish, they deliver reliable corrosion resistance for outdoor and marine projects. Key Features: Corrosion Protection: Hot dipped galvanized steel resists rust in outdoor and marine environments Load Distribution: Flat washer design spreads force

5/16 in. Hot-Dip Galvanized USS Flat Washers (100-Pack)

These Hillman USS flat washers add load distribution and prevent fasteners from biting into wood or metal. Made of steel with a hot-dipped galvanized finish, they deliver reliable corrosion resistance for outdoor and marine projects.

Key Features:

  • Corrosion Protection: Hot-dipped galvanized steel resists rust in outdoor and marine environments
  • Load Distribution: Flat washer design spreads force to protect surfaces and strengthen joints
  • USS Compatibility: Sized for coarse-thread 5/16 in. bolts and screws
  • Bulk Value: 100-pack for jobsite efficiency and replenishment
  • Durable Construction: Steel build maintains clamping force under heavy use

Specifications Table:

Specification Details
Material Steel
Finish Hot Dipped Galvanized
Washer Type Flat
Standard USS (coarse thread compatibility)
Size 5/16 inch
Number in Package 100 pack
Packaging Type Boxed
Inch/Metric Inch

Frequently Asked Questions (FAQ):

Q: What bolt size are these washers for?
A: They are designed for use with 5/16 in. coarse-thread (USS) bolts and screws.

Q: Can these be used outdoors?
A: Yes. The hot-dipped galvanized finish provides strong corrosion resistance suitable for outdoor applications.

Q: Are these metric or inch sized?
A: Inch sized (USS standard).

Q: What is included in the package?
A: A boxed 100-pack of 5/16 in. USS flat washers.

Q: Do these work with fine-thread hardware?
A: They are intended for USS coarse-thread bolts; match washers to the hardware standard you’re using for best results.

Industrial Strength, Effortless Finish

The galvanic sheen of these flat washers brings a refined, utilitarian beauty to exposed hardware moments. Their hot-dipped finish offers a rugged texture that complements raw woods and weathered metals. Style them with blackened bolts on cedar or concrete for a crisp, architectural detail. A small component with big impact—essential for enduring, luxe outdoor installations.

Equip your project with corrosion-resistant confidence—add this 100-pack of Hillman 5/16 in. galvanized flat washers 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: 43390678645

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4.5 ★★★★★
Based on 29 reviews
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Verified Purchase
Phyllis
Lexington, US
★★★★★ 5
It is what I was looking for
Size: 10-13, Color: Black Lattice
The product is use for a at home slipper so that I don't need to wear shoes. I can relate my feet with a soft support on the bottom of my feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2022
O
Verified Purchase
OhThoseTervs
Pawtucket, US
★★★★★ 5
What I've been looking for
Size: Large (Pack of 1)
Just got my Nero Ball. Only used it once, but really like it. I've tried other "ball on a string" type toys, with unsatisfactory results. I'll be using it as a training reward, and my boy, who is a pretty ferocious tugger, is going to learn 2 new things with this ball. 1st, to target the ball instead of the rope, and 2nd, that it's for a little gentle tugging instead of the full throttle stuff he does otherwise. After our 1st session with the Nero Ball, he's picking up on the new rules quickly. We'll see how it does long term, but I think this is one I'll stay with. *UPDATE* Been using my Nero Ball for a month now. I'm tempted to call it the 'Hero Ball' because it's just that terrific!! For me, the key has been putting in the time to allow both myself & my dog to develop the skill to use this tool smoothly. May sound strange, but using a toy as a training reward requires practice, and each different toy configuration requires different handling. It's time well spent - we're both having a lot of fun! Kudos to the designer of this ball. Every detail has been carefully considered, from the length & material of the rope (just the right length that the dog won't step on it; material is easy on the hand while still being tough enough to withstand a few toothy grabs; the loop is the perfect size to grab for a little tug or to pass the ball through to slip-knot it onto a belt loop). The ball is also just right. The knobs make it non-slip, the rubber eliminates tennis ball fuzz concerns, and being semi-hard and hollow makes it slightly compress-able, which makes it a higher value reward than a solid ball that can't be compressed. While this ball will not work for every application or for every dog, if you carefully read & understand the information provided and don't expect it to work outside those parameters, you will be pleasantly surprised by a very well designed, well constructed tool that you can use to enhance your training or play sessions with your dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2016
L
Verified Purchase
LRG
Chelsea, US
★★★★★ 5
Great Quality!
Size: Large (Pack of 1)
Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
M
Verified Purchase
Mark
West Palm Beach, US
★★★★★ 4
Nice toy
Size: Large (Pack of 1)
This product is generally durable and easy to throw. However, the original rope knot came undone after just four throws, per my wife. Unfortunately, my knot-tying skills are limited to fishing knots and slip knots, which is on me. While I can't give a perfect score, I believe it deserves a 4.5 out of 5 stars due to the knot issue. A simple solution would be to apply heat shrink tubing over the knot and heat it to secure it, which would enhance its reliability and potentially elevate the rating to a perfect five stars.
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Reviewed in the United States on March 29, 2025
C
Verified Purchase
Charles Rogers
Lake Worth, US
★★★★★ 5
Our German Shepherd loves it!
Size: Large (Pack of 1)
Order arrived promptly and in good condition. Our GSD barely let us get it out of the package before wanting to play with it. Works great as training reward and for fetch games. Been using it for three weeks, and it is holding up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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