SKU: 57026323458

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

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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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4.8 ★★★★★
Based on 15 reviews
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Verified Purchase
Mo Magoo
Grantham, US
★★★★★ 4
Would give them 5 stars if they were TCF
Size: Size 5 (124 Count)
These diapers fit my baby well. Many brands I’ve tried seem to be too tight in the waist/bulky on the bottom for my baby, but not these. I wish they were TCF, but as far as I can tell they are only ECF, so they’re a backup diaper for me as I try to buy TCF. The only other drawback is that the ruffles are pretty small so that’s less leakage/blowout protection but it hasn’t seemed to cause much of a problem for us. They’re pretty soft and stretchy. I like that they have a wetness indicator. Pros: Price Soft Stretchy Good fit for my delightfully chunky baby Wetness indicator Not bulky ECF* Cons: *Not TCF Small ruffles
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2024
A
Verified Purchase
Ashely Reilley
Whiting, US
★★★★★ 1
A Catastrophic Failure in Diaper Form
Size: Size 2 (184 Count)
I’m not sure if I just got a bad batch or if these diapers are always this horrendous, but I will not spend another dime to find out—and I strongly urge you to do the same. I loved this brand’s Gentle version. They were everything you want in a diaper: super absorbent, well-fitted, no blowouts. I was their biggest fan. So, when the Gentles weren’t available, I thought, Surely the Plush will be just as good, maybe even better! I have never been more wrong. Let’s start with the tabs. These things are folded up like some kind of sick joke, requiring you to unfold them in three separate, precise movements. Miss a step? The tab rips off in your hand, leaving you holding a now-worthless scrap of disappointment. This happened to me. It happened to my mother. It will happen to you. But wait, there’s more! The side wings are a disaster. The right wing is disproportionately longer than the left, which means everything in this diaper is permanently listing to the right like a sinking ship. The left side? Practically non-existent. As a result, I have experienced more blowouts with these diapers than in my daughter’s entire life combined. I don’t know what sorcery was used to engineer a diaper that actively funnels poop toward the worst possible escape route, but here we are. And because I was foolishly optimistic, I bought a month’s supply. So now I'm locked in a psychological battle with my own stubbornness. I could throw them out, but that would be admitting defeat. So instead, I soldier on, knowing each diaper change is another step into madness. Please, learn from my mistake. You don’t have to live like this. Let me be your tribute, the sacrificial parent who suffered so you don’t have to. We’re already running on fumes as newborn parents—don’t make it worse by willingly subjecting yourself to these truly useless diapers that will rob you of your last remaining shreds of sanity. Save yourself. Run.
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Reviewed in the United States on February 26, 2025
B
Verified Purchase
Brianne Biggerstaff
Whiting, US
★★★★★ 5
DON'T SLEEP ON THESE DIAPERS! (but your baby should)
Size: Size 3 (40 Count)
I was skeptical at first trying out the plush version of this diaper because I thought the mama bear gentle touch was just OK and you can find a better diaper for the same price point. I saw these on prime day for the same price as the gentle touch and said why not. I was very, very impressed. They are soft and flexible with a satin-like exterior; similar to the feel of a hello bello diaper. The plush version definitely feels more quality than the papery gentle touch ones. I first tested the absorbency using 12 oz of water, waited ten minutes and dabbed dabbed dabbed. Seriously NO moisture! In comparison to the gentle touch diaper that had obvious moisture after the same test. I put them to use on my baby, who just for reference is 19lbs, for an overnight and the diaper did not leak and was only damp in the morning, not wet! Amazing. She is a moderate wetter but I still think that performance is great because in comparison to gentle touch, the diaper was wet on the inside after only three hours and I had to consistently use diaper cream so rash wouldn't develop; I would have never used the gentle touch as an overnight diaper. Seriously, for .21 a diaper for size three these diapers are a steal. DONT SLEEP ON THIS DEAL, PICK UP SOME MAMA BEAR PLUSH DIAPERS!
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Reviewed in the United States on July 23, 2024
A
Verified Purchase
Annie Love
Boise, US
★★★★★ 3
Not the Same 🤍
Size: Size 2 (184 Count)
I loved the Mama Bear size 1 diapers, so I expected the “plush” size 2s to be the same. Unfortunately, they feel completely different. These seem thinner and not quite as absorbent as the size 1 regular pack. The design is also really busy, which makes the wetness indicator harder to see at a quick glance. With babies, that little line matters more than you’d think. I’ll still finish the pack, but I’m not sure I’d repurchase this “plush” version. If you’re choosing between them, I’d recommend sticking with the regular pack instead. In comparison, Huggies still perform better than these for us. 🤍✨ They don’t hold blowouts at all but they do fit well. They’re also not stretchy. I noticed the print on my baby’s legs.
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Reviewed in the United States on March 14, 2026
G
Verified Purchase
Gabriela V Joshi
Cuba, US
★★★★★ 5
Great cost efficient option
Size: Size 4 (36 Count)
I switched over from Millie Moon and really like these. They’re affordable, don’t have harmful additives, and are soft and gentle on my babies. Holds a significant amount and doesn’t leak even on overnight wears. I like the simple non character design as well.
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Reviewed in the United States on February 2, 2026

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