Hillman 5/8 in. D x 4-1/2 in. L Heat Treated Steel Hex Head Cap Screw, Grade 8, 25-Pack
SKU: 57026323458

Hillman 5/8 in. D x 4-1/2 in. L Heat Treated Steel Hex Head Cap Screw, Grade 8, 25-Pack

Sale price$87.29 Regular price$96.99
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Description

Hillman 5/8 in. D x 4-1/2 in. L Heat Treated Steel Hex Head Cap Screw, Grade 8, 25-PackHillman Grade 8 Hex Head Cap Screws, 5 8" x 4 1 2", 25 Pack Heavy duty Hillman hex head cap screws deliver Grade 8 strength for demanding fastening jobs. Made from heat treated steel with a washer face under the head, they provide a reliable clamp and wear resistance in structural and machinery applications. Key Features: Grade 8 Strength: Heat treated steel for high tensile performance and durability Washer Face Head: Built in bearing surface for

Hillman Grade 8 Hex Head Cap Screws, 5/8" x 4-1/2", 25-Pack

Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for demanding fastening jobs. Made from heat-treated steel with a washer face under the head, they provide a reliable clamp and wear resistance in structural and machinery applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance and durability
  • Washer Face Head: Built-in bearing surface for improved seal and load distribution
  • Partially Threaded Shank: Optimizes clamping force and alignment in assemblies
  • Coarse Thread: Facilitates quick installation and strong hold in tapped holes or with nuts
  • 25-Pack Value: Convenient boxed quantity for jobsite or shop replenishment

Specifications Table:

Specification Details
Diameter 5/8 inch
Length 4-1/2 inch
Material Heat-treated steel
Grade Grade 8 (USS)
Head Style Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Finish/Color Heat-treated; yellow dichromate wear-resistant finish (per web data)
Number in Package 25 (boxed)
Unit of Measurement Imperial (size listed in inches)

Frequently Asked Questions (FAQ):

Q: What size are these bolts?
A: Each hex head cap screw is 5/8 inch diameter by 4-1/2 inch length.


Q: Are these fully threaded?
A: No. They are partially threaded along the shank for improved clamping performance.


Q: What material and grade are they?
A: They are Grade 8, heat-treated steel for maximum strength in heavy-duty applications.


Q: What thread type do they use?
A: Coarse thread, suitable for use with matching coarse-thread nuts or tapped holes.


Q: How many come in the box?
A: 25 screws per pack.


Industrial Poise, Engineered Strength

There’s a certain elegance to hardware that marries precision with presence, and these Grade 8 hex cap screws do just that. The heat-treated steel and clean hex silhouette bring a confident, utilitarian polish to any exposed fastener moment. Style them with blackened steel brackets or natural oak joinery to make the hardware a subtle statement. Consider them the quiet luxury of serious construction—strength that looks refined.


Equip your project with Grade 8 reliability—add these Hillman 5/8 in. x 4-1/2 in. hex cap screws 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: 57026323458

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dawn
Whiting, US
★★★★★ 3
still searching for a truly indestructible dog chew toy
Color: Hedgehog
My smallish dog (15 lb Boston terrier) got this chewed up within a half an hour. I didn't notice right away that he was also eating the parts he chewed off. Didn't last a day. Otherwise, quick shipping for a cute toy.
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Reviewed in the United States on June 12, 2026
M
Verified Purchase
Mena
Houston, US
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them. It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
L
Verified Purchase
Lindap
Houston, US
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first. Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far. Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
A
Verified Purchase
Amanda Rogers
West Palm Beach, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026
S
Verified Purchase
Stefne
Port Orchard, US
★★★★★ 5
Great for little dogs that like to chew
Color: Hedgehog
Great for my 10 lb chihuahua that loves to chew! Keeps his teeth clean!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

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