Hillman 5/8 in. Diameter x 5 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack
SKU: 42273762925

Hillman 5/8 in. Diameter x 5 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack

Sale price$73.79 Regular price$81.99
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Description

Hillman 5/8 in. Diameter x 5 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-PackHillman Grade 5 Zinc Hex Head Cap Screws, 5 8 in. x 5 in., 25 Pack Heavy duty hex head cap screws engineered from heat treated zinc plated steel for reliable clamping strength. Grade 5, partially threaded shanks deliver durable fastening in machinery, automotive, and construction applications. Key Features: Grade 5 Strength: Heat treated steel provides dependable tensile strength for demanding assemblies Corrosion Resistance: Zinc finish helps protect

Hillman Grade 5 Zinc Hex Head Cap Screws, 5/8 in. x 5 in., 25-Pack

Heavy-duty hex head cap screws engineered from heat-treated zinc-plated steel for reliable clamping strength. Grade 5, partially threaded shanks deliver durable fastening in machinery, automotive, and construction applications.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides dependable tensile strength for demanding assemblies
  • Corrosion Resistance: Zinc finish helps protect against rust and wear in indoor/outdoor use
  • Hex Head with Washer Face: Designed for secure seating and better load distribution
  • Partially Threaded Shank: Improves shear strength and alignment in through-bolt applications
  • 25-Pack Convenience: Boxed quantity for project efficiency and jobsite replenishment

Specifications Table:

Specification Details
Diameter 5/8 inch
Length 5 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5 (USS)
Head Style Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Number in Package 25 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank (USS Grade 5).


Q: What material and finish are used?
A: Steel with a heat-treated zinc finish for added strength and corrosion resistance.


Q: What thread type do these bolts use?
A: Coarse thread.


Q: How are they installed?
A: Tighten using a wrench or a compatible driver on the hex head.


Q: What are the bolt dimensions?
A: 5/8 inch diameter by 5 inch length.


Industrial Poise with Polished Purpose

This hex cap screw is the quiet hero—sleek, zinc-kissed steel that anchors a space with confident restraint. I love the refined hex head, its washer face seating flush for a tailored, architectural finish. Use it to showcase exposed fasteners on custom shelving or hardware moments where form meets function. It’s a small luxury with big impact—precision you can see and trust.


Upgrade your builds with Grade 5 strength—add this 25-pack to your cart and fasten with confidence.

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: 42273762925

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4.4 ★★★★★
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C
Verified Purchase
Cody Craddock
Dallas, 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
Belleville, 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
Omaha, 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
Louisville, 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024

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