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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4.6 ★★★★★
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Verified Purchase
Cody Craddock
Phoenix, US
★★★★★ 5
Cheap Replacement
These are an easy replacement for anyone who owns a BMW m52/m54 engine that has PCV issues. My car was burning about 1 quart every 1,000 miles. The parts are direct fit and install fairly easy. If there is resistance, lube the hole or o-ring up with some grease and it will slide in easier. Took me about 2 hours start to finish. My mechanic recommended that I remove the intake manifold to do the job. I don’t see how you could do it without removing the intake manifold. These parts probably won’t last as long as true BMW parts but on a 20 year old car I don’t see the benefit in using genuine BMW parts. Cheap stuff will suffice; worst case it doesn’t last quite as long.
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Reviewed in the United States on December 6, 2021
S
Verified Purchase
Slickster
Draper, US
★★★★★ 4
NOT TOO HARD TO INSTALL...
This CCV kit seems adequate. People say that because the hoses supplied with these kits are more brittle than the genuine BMW parts, these are tough to install... But they're really not. The ends on these hoses SWIVEL and you can sort of eyeball which way you need the fitting to be pointing BEFORE you put them on your manifold... They swivel, but they're tight and it takes a little force to turn them. ALSO, a little dab of silicone gel or a spray of silicone out of the can, into the fittings on these makes a world of difference when clicking them on... For the price, I highly recommend the kit.
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Reviewed in the United States on October 14, 2025
P
Verified Purchase
Philip Giuliano
Dallas, US
★★★★★ 5
Great value
I recently had to replace the starter on my 2001 325i E46 with about 150k miles. While I had the intake off, I figured it would be a good time to replace the CCV because I was unsure if it had ever been done. My old CCV literally fell apart as I removed it, so I'm glad I replaced it. The new parts were a little tough to put together, but overall came together well enough. A lot can be forgiven for the price. I would recommend assembling the system before installing in your vehicle to get a good sense of how it all goes together and to hopefully loosen up the fittings just a tad before installation. 50skid on youtube has a great DIY for doing this job. I only finished this job yesterday, but my car has been running great. I can't yet confirm, but this may have solved my running lean problem.
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Reviewed in the United States on January 27, 2023
C
Verified Purchase
Craig Randall
Belleville, US
★★★★★ 3
Cheap plastic parts -- good fit
They are what they are: Cheap plastic parts. They fit, but long-term durability will be a challenge. Probably will buy from FCP Euro going forward (and just did for a fuel line replacement).
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Reviewed in the United States on March 12, 2024
R
Verified Purchase
ruben rodriguez
Lowell, US
★★★★★ 5
2001 325i
Great quality fits perfect durable. no more leaks works great. Great price.
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Reviewed in the United States on September 29, 2024

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