SKU: 51310747997

Hillman Hot Dipped Galvanized Steel 3/8 in. USS Flat Washer, 100-Pack

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Description

Hillman Hot Dipped Galvanized Steel 3/8 in. USS Flat Washer, 100-Pack3 8 in. Hot Dipped Galvanized USS Flat Washers (100 Pack) These Hillman USS flat washers distribute load and prevent fasteners from sinking into material. Made of durable steel with a hot dipped galvanized finish for strong corrosion resistance, they fit 3 8 in. coarse thread bolts and screws. Key Features: Corrosion Resistant Finish: Hot dipped galvanized steel stands up to moisture and outdoor exposure Load Distribution: Flat profile spreads

3/8 in. Hot-Dipped Galvanized USS Flat Washers (100-Pack)

These Hillman USS flat washers distribute load and prevent fasteners from sinking into material. Made of durable steel with a hot-dipped galvanized finish for strong corrosion resistance, they fit 3/8 in. coarse-thread bolts and screws.

Key Features:

  • Corrosion Resistant Finish: Hot-dipped galvanized steel stands up to moisture and outdoor exposure
  • Load Distribution: Flat profile spreads clamping force to protect wood and other materials
  • USS Sizing: Designed for coarse-thread 3/8 in. bolts and screws
  • Bulk Pack Convenience: 100-pack for jobsite efficiency and replenishment
  • Versatile Use: Ideal for decking, framing, fencing, and general construction

Specifications Table:

Specification Details
Brand Hillman
Type USS Flat Washer
Size 3/8 inch
Material Steel
Finish Hot Dipped Galvanized
Count 100 pack
Inch/Metric Inch
Packaging Type Boxed

Frequently Asked Questions (FAQ):

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

Q: Are they suitable for outdoor applications?
A: Yes. The hot-dipped galvanized finish provides robust corrosion resistance for exterior use.

Q: What material are the washers made from?
A: Steel with a hot-dipped galvanized coating.

Q: How many washers are included?
A: 100 washers per package.

Q: Are these SAE or USS?
A: They are USS washers for coarse-thread fasteners.

Industrial Strength, Quiet Sophistication

A crisp ring of galvanized steel brings a refined, utilitarian polish to any build. I love the matte, zinc-kissed finish—subtle yet resilient—anchoring hardware with intention. Pair these with blackened fasteners on pale woods for a chic, tonal contrast that feels both modern and enduring. Essential, hardworking, and elegantly simple—they’re the unsung heroes of a luxe, lasting space.

Equip your next project with these galvanized 3/8 in. USS flat washers for reliable, corrosion-resistant fastening—add the 100-pack 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: 51310747997

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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
R
Verified Purchase
RF
Lake Worth, US
★★★★★ 5
Great quality pillows. Very difficult wrapping.
Color: White, Size: King (Pack of 2)
The Pillows are the real deal. Very fluffy but with good support. I was surprised by the weight of the box they came in, pretty heavy so you know there’s good quality pillows inside. The one negative is that the pillows are packed in very very tight plastic because they come compressed. But the thing is, it’s really a chore to open them. You have to be careful not to cut through the plastic to the material, but the plastic is put on so incredibly tight that it’s even hard to get your finger underneath. But I found a way to open them. Near the top, insert A very flat metal ruler as far in as you could get it. Then cut through the plastic that’s above the metal ruler. That prevents a sharp tool from damaging the pillows. As you get through the plastic above the ruler, keep pushing the ruler further down into the package. Believe me, this simplifies what could be a very difficult unpacking. I am very surprised that the company that makes them does not insert the type of opener that you find on boxes you receive in the mail or even packages that you get from the grocery store where you just pull a tab and that opens the package. These are really good pillows, but you must be very careful about using a sharp object when opening the box and when trying to cut through the plastic. I am a strong man and have the tools needed, a very flat metal ruler, and a box cutter, knife, or razor. Good luck. !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
L
Verified Purchase
Laura
Omaha, US
★★★★★ 5
Good quality
Color: White, Size: King (Pack of 2), Color: White, Size: King (Pack of 2)
These are so comfortable. I don’t think I even have to break them in. Soft and firm at the same time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kindle Customer
Whiting, US
★★★★★ 4
Firm to not firm pillows
Color: White, Size: Queen (Pack of 2)
At first the pillows were nice and firm however over the past several weeks they are no longer as firm
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
C
Verified Purchase
Carolina Álvarez
Fort Morgan, US
★★★★★ 5
Soft & Durable Mattress Protector
Color: 1 Gray, Size: Queen, Color: 1 Gray, Size: Queen
Excellent mattress cover. The fabric feels soft and comfortable while providing great protection for the mattress. It has an elegant design that gives the bed a clean and modern look. It fits well, is easy to put on, and stays in place. Great value for the price. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
H
Verified Purchase
HandyAndy
Chelsea, US
★★★★★ 5
Nice protector cover, quiet and comfy - best for THICK mattresses
Color: 3 Navy Blue, Size: Full
I liked this pad immediately as fabric cover has nice quilting (just slightly puffy), and touch feel and feels substantial enough to hold up over time. I’ve ordered a few different brands of these and they were crappy, insubstantial pads I did not think would hold up to more than a couple washings. My biggest complaint and it’s due to my own lack of experience buying these in the new world of skillions of mattress thickness choices is that (A) the side panels / elastic pockets are HUGE and will never be secure on anything thinner than a 12” (or thicker!) mattress; and (B) I thought I was buying an ENCASEMENT cover pad which this is not. I’m blaming that on Amazon because I specifically input “encasement” in the search and their F’ing search algorithm does whatever the heck it wants and if you’re not paying nit-picky attention you get stuff you don’t want. (Or you waste time sorting out the ones you didn’t want to see in the first place!) That said I am seriously considering keeping this (depending on late arrivals of competing covers) as I’m certain this will be comfortable and as quiet as these waterproof covers get. It’s a nice cover. UPDATE: it’s a couple weeks later and I’m reporting I did keep it and am happy to have done so. It installed more securely than anticipated and is as comfortable as I thought it would be. I’ll try and update again when I have time to resize pics and show how much my cat enjoys it too:) UPDATE#2: in review I noticed that the 1* reviews were on about nasty liquids leaking through - I haven’t had any large scale events to gauge but I can see how those reviews could be valid. I should report out of EVERY type of these “nice” noiseless “waterproof” pads I’ve got I think every one of them probably could have the same fault. In other words though I use and really like this cover I also purposely use an encasement style mattress protector (you know the put it in a bag w/zipper kind and a pain in the a** to do so kind) to avoid the complaints in the 1* camp. These mattresses are just too costly and spongelike to NOT protect them completely so I appreciate their frustration that things leaked for them. In my choice to keep this I did so because a) it most probably is pretty waterproof & is definitely quiet & comfy; b) it’s pretty easily washable; and c) because most of the encasement protectors are of more “crinkly” material than this (at least the ones I’ve seen so far - maybe the super expensive ones have figured out how to be perfectly waterproof without crinkle) and by using this nice top protector I put a layer on top of the crinklier encasement and everything just ends up much better with no noticeable crinkle. Figured I say this to help detail 1* vs. 5* because right!? how can one thing be so great and when you turn around then be so terrible… just sayin. (& I did not change my 5* rating😎)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026

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