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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:
- 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
4.9 ★★★★★
Based on 1272 reviews
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Product Reviews
★★★★★ 5
Heavy-Duty Solution for Large Towers — Rock Solid
This CPU holder is exactly what I needed to reclaim my desktop workspace. I wanted to get the computer off the desk to clear up room for projects, but I didn't want to put it on the floor where it’s susceptible to static and pet hair. This mount keeps the tower tucked away under the desk but still within easy reach.
Build Quality & Weight:
The unit is impressively well-built with sturdy steel. While the specs state it can hold up to 44 lbs, my current build is closer to 20 lbs, and it handles it with zero flex or wobble. It feels very secure once locked in.
Design & Airflow:
One of the best benefits I’ve noticed is the noise reduction. Having the case mounted under the desk surface helps shield the sound of the fans, creating a quieter workspace. The open-frame design is also great for airflow and keeps all the ports easily accessible. It’s highly adjustable (width 7.7” to 11.8” and height 20” to 25.8”), so it should fit almost any full-size case.
Installation Tip:
Installation was straightforward, though I’d recommend measuring your desk thickness first to ensure it can support the weight. If you’re looking for a solid, full-size PC holder to keep your system off the floor, this is a great choice. It feels like a professional-grade mount that will last through several different builds.
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Reviewed in the United States on April 7, 2026
★★★★★ 4
Great way to keep your PC off the floor, especially with a standing desk
This mount is a great solution if you want to get your desktop tower off the floor and clean up the space around your desk. The construction feels very solid and once installed it holds the PC securely without any wobble. I like that the frame is adjustable so it can fit different case sizes, and the open design allows for good airflow while still supporting the case well.
It is especially helpful if you have a standing desk. Keeping the tower mounted under the desk means all of the cables move with the desk when it raises or lowers, which makes everything much cleaner and easier to manage. Installation takes a little planning to line things up correctly, but once it is mounted it feels very secure. If you want a cleaner workspace and a better setup for a standing desk, this mount works really well.
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Built Like a Tank… Maybe Too Big
This thing is solid. The build quality is exactly what you want when you’re hanging a PC under a desk—sturdy steel, secure mounting, and plenty of adjustability to fit larger cases. It definitely does its job of getting your tower off the floor and out of the way.
That said, size matters here—and this is built for big cases. If your setup is more compact, it is overkill. Definitely measure before you commit, because while the adjustability is nice, it’s clearly designed with larger towers in mind.
Pros:
Very sturdy, confidence-inspiring build
Adjustable to fit a wide range of larger PC cases
Keeps PC off the floor (less dust, more space)
Can mount under desk or on wall
Cons:
Oversized for smaller or mid-sized builds
Requires careful measuring before install
Bulkier than some alternative mounts
Bottom Line:
A heavy-duty mount that does exactly what it promises—just make sure your PC actually needs something this big before you commit.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
My god
Build Quality
The steel construction is very solid and feels durable enough to support a desktop tower or similar device. The powder-coated finish also helps protect against scratches.
Comfort / Ergonomics
Mounting a PC under the desk helps free up floor space and improves overall desk organization. It also keeps the computer elevated away from dust and improves airflow.
Features
The adjustable frame allows it to fit a variety of PC sizes, which makes it versatile. The mounting brackets feel strong and secure once installed.
Ease of Use / Installation
Installation requires basic tools but is fairly simple. Once mounted, the adjustable brackets make it easy to secure the computer in place.
Cleaning / Maintenance
Keeping the PC off the floor makes cleaning around your desk easier and helps reduce dust buildup in the computer itself.
Overall Impression
This mount is a great solution for anyone wanting a cleaner desk setup. It’s sturdy, adjustable, and keeps your computer safely mounted under the desk. Excellent for improving workspace organization.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Rock Solid and Computer / Wall Safe! Last PC Mount you'll ever need.
This is the hardware that you want in your office: robust, no-nonsense, and able to boss you around its workload. I installed a full size PC case/server in it, and it is rock solid once you lock it in. The open-frame design also merits a mention here as it greatly improves airflow and allows you to access ports on the motherboards and other hardware on your rig should you want to during your gaming sessions without bringing too much heat inside and causing headaches. The width of the holder can be adjusted (approximately 7.7” through 11.8”) in width and (approximately 20” through 25.8”) in height so it fits a large variety of towers, so you don't have to worry whether it could fit your set-up or not. Smaller towers may have substantially more wiggle room though.
The mount's weight limit is no joke—up to 44 lbs—so you're not sacrificing stability just to save a few bucks. The shells are quite secure, although some people may have wished for a little more tightening bite; they still prevent your equipment from falling off if you accidentally bump on a wall, which is more important than you may think.
A little nitpick: the lower wall-mount bracket could have a couple of extra pilot holes to reduce twisting over time. Not a breaker, just a heads-up for all of you who are looking to the long term. Altogether, it's a reliable, solid fix that is well worth the cost, particularly if you're cramming space and airflow in a tight configuration.
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Reviewed in the United States on December 27, 2025
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