SKU: 20374358317

Hillman 5/8 in. D x 3 in. L Heat-Treated Steel Hex Head Cap Screw, Grade 8, 25-Pack

Sale price$68.39 Regular price$75.99
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Description

Hillman 5/8 in. D x 3 in. L Heat-Treated Steel Hex Head Cap Screw, Grade 8, 25-PackHillman Grade 8 Hex Head Cap Screws, 5 8" x 3", 25 Pack Heavy duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Heat treated steel with a washer face under the head provides secure clamping and long lasting wear resistance. Key Features: Grade 8 Strength: Heat treated steel for high tensile performance in heavy duty applications Washer Face Head: Built in bearing surface under the hex head improves load distribution

Hillman Grade 8 Hex Head Cap Screws, 5/8" x 3", 25-Pack

Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Heat-treated steel with a washer face under the head provides secure clamping and long-lasting wear resistance.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance in heavy-duty applications
  • Washer Face Head: Built-in bearing surface under the hex head improves load distribution and sealing
  • Partially Threaded Shank: Added shear strength where it matters; coarse thread for quick starts
  • Durable Finish: Yellow dichromate/heat-treated finish enhances corrosion and wear resistance
  • Bulk Convenience: 25-pack for jobsite efficiency and consistent hardware matching

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/8 inch
Length 3 inch
Head Type Hex head with washer face
Material Steel
Grade Grade 8
Thread Type Coarse
Threading Partially threaded shank
Finish Heat-treated yellow dichromate-style finish
Number in Package 25 pack
Packaging Type Boxed
Tightening Method Wrench or drill/driver
Category Hex Bolts
Unit of Measurement Imperial
Package Dimensions (L x W x H) 5.3 in x 4.3 in x 3.3 in
Package Weight 7.7 lbs

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: They are 5/8 in. diameter by 3 in. length, coarse thread.


Q: Are these fully threaded?
A: No. They are Grade 8 and partially threaded along the shank for added strength.


Q: What tools are needed for installation?
A: Tighten with a wrench or compatible socket/driver on the hex head.


Q: What material and finish are used?
A: Heat-treated steel with a yellow dichromate-style finish for strength and wear resistance.


Q: How many are included?
A: This box contains 25 hex head cap screws.


Industrial Strength, Streamlined Form

The bold geometry of a hex head brings a clean, purposeful rhythm to utility spaces. I love the subtle sheen of heat-treated steel—quietly powerful, impeccably functional. Use these Grade 8 cap screws to anchor butcher-block islands or exposed shelving for an honest, refined industrial note. They’re the precision detail that elevates hardworking design into everyday luxury.


Choose these Grade 8 Hillman cap screws for reliable, heavy-duty fastening that lasts—add the 25-pack to your project list 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: 20374358317

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Nykea
Phoenix, US
★★★★★ 3
Works well, but very difficult to remove!
Color: Silver
Perspective: Ive had this caddy for 3 years and it has suited me well. Over time the hooks that hold the caddy in place loosened and the caddy would occasionally fall off the side of the sink wall. Not a huge deal, just a small inconvenience. Over time it started to happen more often because the plastic hooks completely lost their grip so I decided to replace it. Well it literally took me 3 days to get it off of the side of my sink. Using different tools to jimmy it off because the adhesive is sooo strong (which is a good thing, until you are looking to remove it). It took a razor blade and several bouts of goo gone to get the whole thing off as well as the leftover adhesive. The fact that it lasted for 3 years is a testament that it is a good product, but it lost several stars for the drama and pain and suffering it took to remove. I wont be buying another one.
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Reviewed in the United States on November 27, 2024
B
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Bria
Lake Worth, US
★★★★★ 5
Good For Deep Sinks
Color: Silver
This item is very sturdy however the piece on the outside that holds your rag tends to slip or lay flat all the time. The adhesive is very strong to the point where I needed to use a tool to get it off while moving, so you’ll never have to worry about it popping off your sink! I can only figure that this fits in all sinks because at my old apartment I had a very small sink the only thing I didn’t like due to having a small sink my rag was always touching the bottom of the sink and there wasn’t any space left in the side I had it on. If you have a big sink I’d suggest this item because it looks nice and it gives your wash cloth and sponge a home in the kitchen!
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Reviewed in the United States on June 28, 2024
M
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Mother of dragons
Lowell, US
★★★★★ 5
Cute soap and sponge caddy
Color: Black
Good product! I like how the water drips down into the sink. Instead of on the back of the sink. Helps keep the area cleaner and dry.
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kaitland
Alexandria, US
★★★★★ 5
Worth it!!!
Color: Black
Sturdy metal, easy to put together, works well, looks nice on the counter... holds the wash brush, dawn dish spray, (at an angle), and the sink stopper. Definitely woth the money!
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Reviewed in the United States on February 8, 2026
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Cayla Salazar
Dallas, US
★★★★★ 5
Saves Space
Color: Lacquer Silver, Color: Lacquer Silver
I LOVE this sink caddy! It’s the perfect size to fit my sponge and dish soap dispenser. It makes the sink look cleaner.
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Reviewed in the United States on June 1, 2026

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