Hillman 1/2 in. Dia x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw, 50-Pack
SKU: 56996663821

Hillman 1/2 in. Dia x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$72.19 Regular price$80.21
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Description

Hillman 1/2 in. Dia x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman 1 2" x 3" Grade 8 Hex Head Cap Screws (50 Pack) Heavy duty hex head cap screws made from heat treated zinc coated steel for high strength fastening. The 1 2 inch diameter by 3 inch length bolts are ideal for automotive, machinery, and structural applications where reliable clamping force is essential. Key Features: High Strength Grade 8: Heat treated steel delivers superior tensile strength for demanding applications Corrosion Resistant

Hillman 1/2" x 3" Grade 8 Hex Head Cap Screws (50-Pack)

Heavy-duty hex head cap screws made from heat-treated zinc-coated steel for high-strength fastening. The 1/2-inch diameter by 3-inch length bolts are ideal for automotive, machinery, and structural applications where reliable clamping force is essential.


Key Features:

  • High Strength Grade 8: Heat-treated steel delivers superior tensile strength for demanding applications
  • Corrosion-Resistant Finish: Zinc/yellow dichromate coating helps protect against rust
  • Precise Hex Head: Designed for secure wrench grip and consistent torque application
  • Coarse Thread: Optimized for quick installation and strong hold in compatible nuts/tapped holes
  • Bulk Value Pack: 50 screws to tackle larger projects and ensure you have spares on hand

Specifications Table:

Specification Details
Hardware screw type Hex Cap
Finish Heat Treated; Zinc/Yellow Dichromate
Material Steel
Diameter 1/2 in
Length 3 in
Thread Type Coarse
Grade Grade 8
Head Diameter 0.58 in
Color Yellow
Threaded Yes
Units Inch
Count 50 per pack

Frequently Asked Questions (FAQ):

Q: What thread type do these screws use?
A: They feature coarse threads suitable for standard Grade 8 hex cap screw applications.


Q: Are these suitable for outdoor use?
A: The zinc/yellow dichromate finish offers corrosion resistance; for highly corrosive environments, consider stainless or additional protective measures.


Q: What tools are needed for installation?
A: Use a compatible wrench or socket sized for the 1/2-inch hex head to tighten to the required torque.


Q: Can these be used in automotive applications?
A: Yes—Grade 8, heat-treated steel makes them appropriate for many automotive and machinery uses when the size and thread match specifications.


Q: How many screws are included?
A: This pack contains 50 screws.


Industrial Strength with a Refined Finish

These Grade 8 hex cap screws bring a sleek, warm zinc dichromate glow to utilitarian hardware, elevating the craft of assembly. The crisp hex profile becomes a subtle design statement while delivering uncompromising strength. Style them in exposed mechanical joints for an industrial-chic detail that feels intentional and polished. Consider them essential hardware—where performance and aesthetic restraint meet luxurious functionality.


Upgrade your project with high-strength, corrosion-resistant fasteners—add this 50-pack 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: 56996663821

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Bored_BloodletterofKorne
Cuba, US
★★★★★ 4
auto-rolling dog ball
I don't know what i'm doing wrong but my pets don't enjoy it. It's mobile on both settings. I think it just needs a place inside to place a treat or something. Quality seems okay. The battery lasts a long time. They chewed on it for a little bit and left it, the material is okay. It's made of some kind of rubber.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
T
TKibbs
Boise, US
★★★★★ 5
Fun, Interactive Toy That Keeps Pets Engaged
Summary: A smart rolling dog toy that helps reduce boredom and keeps pets active with minimal effort. Pros: Auto-rolling feature keeps play engaging Durable, chew-resistant design Encourages activity and mental stimulation Simple to use with minimal setup Works well for solo play sessions Cons: May be noisy on hard floors Not ideal for very aggressive chewers Battery life could be longer Movement pattern can feel repetitive Overall review: This interactive dog ball is a great option for keeping pets entertained, especially when they need something to do on their own. The auto-rolling feature is the main highlight—it moves unpredictably enough to grab attention and keep dogs engaged for longer than a standard toy. It’s especially useful for reducing boredom when you’re busy or not able to actively play. The build feels fairly durable and holds up well for regular chewing, though it’s probably not meant for extremely aggressive chewers. On hard floors, it can be a bit noisy as it moves around, and over time, the movement patterns may start to feel repetitive to more curious dogs. Still, it does what it’s designed to do—encourage activity and provide stimulation. Overall, it’s a fun and practical toy that adds some variety to a dog’s play routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
S
SibesOfSD
Dallas, US
★★★★★ 5
Fun for an active dog!
I have an Australian Shepherd that absolutely loves this auto rolling dog ball! The ball is hard, but covered in a rubber coating. It is still loud when it hits the floor, but that is to be expected. My dog has chased this as well as thrown this ball, and it is still working flawlessly! This ball is definitely durable! It is easy to charge, and provides hours of entertainment! The ball is a great size for a medium dog. I recommend it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
N
Nomadic Dogs
Lexington, US
★★★★★ 1
Auto-Rolling Dog Ball - loud with a mystery filling.
I got this to entertain my high energy dog and she does like it, but I don't. The ball is incredibly loud and doesn't move around nearly as much as I had hoped. When your dog picks it up, it turn their mouth into an amplifier making it louder. It bounces/vibrates around more than rolling. Which is not what I expected, but seems to be engaging enough for more dog (but that doesnt take much). What I really dislike is there is no way on the exterior to know what mode you are in and the inside is full of grease. To charge it and to see the lights to identify what mode it is involves opening it and touching the grease covered insides. The lights don't seem to match the instructions when trying to switch modes. The light is supposed to stay on for 3s. It doesn't for either mode and immediately cycles through other colors making it more confusing. The exterior seems durable enough for a moderate chewer and I like the color and texture. At $15, it seems like a fair price, but I can't recommend this at any price point. I don't feel comfortable letting my dogs play with toys that could easily expose them to an unidentified grease. Any greased components should be sealed. Not somewhere I have to touch for normal operation and potentially leak.
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Reviewed in the United States on April 4, 2026
A
Amazon Customer
Natrona Heights, US
★★★★★ 5
Gentle vibrations and rolling
My sweet old man dog didnt know what to think of this at first. We introduced it to him without turning it on at first, like a regular ball. That was fine, he was good with that and he liked to go chasing it (its heavy because its mechanical so I wouldnt throw it, a light toss/roll is how we started). After we played that way a while we turned it on. At first he was confused as to why his toy was chasing him. It mostly vibrates and bops around a bit. But then my pup started chasing it and kicking it around like a little soccer ball and he LOVED THAT. A charge lasts quite a while too and if he doesnt play with it in for a few minutes it goes to sleep so its not just bouncing constantly and driving me crazy. My pup likes it and it gives me a rest from the constant throwing so I'm happy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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