Hillman Zinc-Plated Steel 3/8 in. USS Flat Washers, Bulk Pack (1675 Count)
SKU: 97400798707

Hillman Zinc-Plated Steel 3/8 in. USS Flat Washers, Bulk Pack (1675 Count)

$90.89 $100.99
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Description

Hillman Zinc-Plated Steel 3/8 in. USS Flat Washers, Bulk Pack (1675 Count)Hillman 3 8 in. USS Zinc Plated Flat Washers (1675 Pack) Durable zinc plated steel flat washers designed for 3 8 in. USS bolts to distribute load and resist pull through. Ideal for general construction, carpentry, and machinery where added bearing surface and corrosion resistance are needed. Key Features: Zinc Plated Steel: Moderate corrosion resistance for indoor outdoor general use USS Sizing: Fits 3 8 in. USS coarse thread bolts and screws Load

Hillman 3/8 in. USS Zinc-Plated Flat Washers (1675-Pack)

Durable zinc-plated steel flat washers designed for 3/8 in. USS bolts to distribute load and resist pull-through. Ideal for general construction, carpentry, and machinery where added bearing surface and corrosion resistance are needed.

Key Features:

  • Zinc-Plated Steel: Moderate corrosion resistance for indoor/outdoor general use
  • USS Sizing: Fits 3/8 in. USS coarse-thread bolts and screws
  • Load Distribution: Increases bearing surface to prevent marring and pull-through
  • Versatile Application: Suitable for wood, metal, and composite fastening
  • Bulk Quantity: Large 1,675-count pack for high-volume jobs and inventory

Specifications Table:

Specification Details
Material Steel
Finish Zinc-plated
Washer Type Flat washer
Standard USS
Bolt Size Compatibility 3/8 in.
Brand Hillman
Pack Quantity 1675 (bulk pack)

Frequently Asked Questions (FAQ):

Q: What bolt size do these washers fit?
A: They are designed for 3/8 in. USS (coarse-thread) bolts and screws.

Q: Are these suitable for outdoor use?
A: The zinc plating provides moderate corrosion resistance, suitable for many outdoor and damp environments; for harsh or marine environments, consider stainless or hot-dip galvanized.

Q: What is the material?
A: Carbon steel with a zinc-plated finish.

Q: Why use a flat washer?
A: It distributes load to protect the material surface and improves fastener security by reducing pull-through.

Q: Is this a bulk pack?
A: Yes, this listing is for approximately 1,675 pieces for stocking and high-volume projects.

Sleek Utility, Quiet Strength

These zinc-washed circles bring a refined practicality to any build—clean, bright, and confidently understated. Their polished sheen pairs beautifully with brushed hardware, elevating even the most utilitarian joints. Style them with black oxide bolts for a chic, modern contrast that feels intentional. A small detail with big impact, they’re the discreet hallmark of luxurious, lasting craftsmanship.

Stock up on these zinc-plated 3/8 in. USS flat washers and elevate your fastening jobs with reliable, corrosion-resistant performance.

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: 97400798707

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4.3 ★★★★★
Based on 2207 reviews
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Product Reviews
C
Verified Purchase
Charlie "Chuck" Brown
Belleville, US
★★★★★ 4
IT WORKS, IT REALLY WORKS!
Size: 16oz, Size: 16oz
I carry a tire plug kit in my van. Low pressure light came on and quickly made my way to air pump. Checked out tire and was at least a 5/16" bolt right between tread, very easy to locate (hissing). Inflated tire, prepared plug, pulled out bolt, inserted plug done. Almost home light came on again. Used water soap and plug was still leaking. Tried double plug and still leaking, but would take days to trigger low pressure light. Tire still had decent tread and didn't have facilities to patch, so got a can of fix a flat. I have never believed in this stuff, but it worked. No low pressure warnings for about a month. Around here they would charge $50 for a patch, 2 .25 cent soft rubber plugs and fix a flat, problem resolved!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
M
Verified Purchase
Markus
Dallas, US
★★★★★ 5
Buy it! Lifesaver!
Size: 16oz
Yes, buy it when you don't have a spare tire because you will need it! I live in Florida and flat tires are just part of living here! Saved my life twice already and is absolutely self explaining! Cheaper then a spare tire, lighter than one too! Just throw it in your trunk and best case you will never need it but just in case!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
E
Verified Purchase
E. A. Jacques
Belleville, US
★★★★★ 1
Difficult to use and eventually hose end broke
Size: 24oz, Size: 24oz
I purchased this can of Fix-A-Flat to fix, what I believe, is a rim leak on my truck tire which needs to be filled once every week or so. When I attempted to use the product I let some air out of the tire (down to 25 psi) so it would be easier to dispense the contents. The instructions on the can say to have the valve on the tire at the 6 o'clock...which I did as well. When I attempted to make the connection using the swivel connector on the can's hose it was difficult. The hose on the can is very short and stiff and because it came coiled in the can's lid, did not want to straighten out making connecting it to the tire a very awkward process. It was hard to screw the hose end on the valve without it binding so it felt like it was cross-threading. I have machined aluminum valve caps and they go one very easily so I know the threads on the tire's valve stem are clean. I finally did get it on and when I attempted to dispense the contents it filled the hose but that was about it. I could not see any contents flowing thru the hose at all. I assumed it was not on far enough so I took it off to try again and the contents sprayed everywhere showing it was indeed under pressure....just not going into the tire. After multiple tries the hose end eventually just broke off and stayed on the tire's valve stem. I was able to get it off, but at this point the can is useless to me. Obviously I cannot and will not recommend this product. I have used this product before and had success, but that was when the hose was longer and wired to the side of the can making it much easier to use, versus how they are shipped now. I would recommend going with another product or possible going to a box store (which is what I plan to do) to find one that does not have this design. At the very least, if you do choose to disregard this review, I would try it with the tire's valve stem at the 3 or 9 o'clock position which might make it easier to thread the hose end on to the valve stem,. Also, if you choose to go this route you might just be throwing your money away. I attempted to get a refund from Amazon and was directed to the manufacture's web site. From there you are directed to use the 800 number of leave a general message that is in no way connected to your Amazon purchase. Past experience tells me it will not be an easy process so it looks like I am out the $12.
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Reviewed in the United States on March 10, 2024
L
Verified Purchase
Leslie winder
Carnegie, US
★★★★★ 5
This is a necessity for anyone that tries a car!!
Size: 20oz 6pk
I haven’t used this yet, but I bought a case to give to my family members. My friend who came outside to a flat tire. It was a Sunday in Utah so there was really no one that could fix it. Walmart told her to get this product. She had to drive home immediately following using this product (300 miles) It has been over two months now and my niece is still driving on that tire. It was a brand new tire that was costly so she decided to just wait and see how long this product will work. Great gift for anyone in the family that drives. This does not work on a blown tire. If you wake up in the morning and your tire is flat, or you get out of class and your tire is flat, just use this product and no calls need to be made.
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Reviewed in the United States on October 14, 2025
S
Verified Purchase
SMX
New York, US
★★★★★ 5
Great product and great service
Size: 16oz
By all accounts it's a great product! It arrived and I feel more confident having it with me in the car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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