Hillman 5/8 in. Diameter x 5-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-Pack
SKU: 5420221209

Hillman 5/8 in. Diameter x 5-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-Pack

Sale price$80.09 Regular price$88.99
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Hillman 5/8 in. Diameter x 5-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-PackHillman Grade 5 Hex Head Cap Screws, 5 8" x 5 1 2", 25 Pack Durable grade 5 hex head cap screws designed for heavy duty fastening. Made from heat treated zinc plated steel with coarse threads and a washer face for a secure seal, ideal for use with a wrench or drill in tapped holes or with a nut. Key Features: Grade 5 Strength: Heat treated steel for dependable performance in demanding applications Protective Zinc Finish: Corrosion resistant coating

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

Durable grade 5 hex head cap screws designed for heavy-duty fastening. Made from heat-treated zinc-plated steel with coarse threads and a washer face for a secure seal, ideal for use with a wrench or drill in tapped holes or with a nut.


Key Features:

  • Grade 5 Strength: Heat-treated steel for dependable performance in demanding applications
  • Protective Zinc Finish: Corrosion-resistant coating extends service life
  • Coarse Thread Design: Promotes quick engagement and strong hold in tapped holes
  • Washer Face Under Head: Improved sealing and load distribution during tightening
  • Bulk Pack Convenience: 25 screws per boxed pack for jobsite efficiency

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Heat Treated Zinc
Grade 5
Head Type Hex Head
Diameter 5/8 inch
Length 5-1/2 inch
Thread Type Coarse
Threading Partially threaded along shank
Washer Face Washer face under head for better seal
Number in Package 25 pack
Packaging Type Boxed
Use For use with a nut or in a tapped hole; tighten with wrench or drill

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are grade 5 screws that are partially threaded along the shank.


Q: What tools are recommended for installation?
A: Tighten with a wrench or a drill; use with a nut or in a properly tapped hole.


Q: Do they resist corrosion?
A: Yes. The zinc finish provides corrosion resistance for general-purpose use.


Q: What thread type do these screws have?
A: Coarse thread.


Q: What is included in the package?
A: A boxed pack of 25 hex head cap screws sized 5/8 inch diameter by 5-1/2 inch length.


Industrial Integrity, Clean Hardware Elegance

These hex cap screws bring a crisp, utilitarian polish to any structural detail. The zinc finish catches light with subtle sophistication, while the bold hex head adds graphic geometry to exposed hardware moments. Style them in open-shelf brackets or sleek, workshop-inspired furnishings for a tailored, architectural vibe. Essential, resilient, and refined—these fasteners anchor luxurious living with quiet confidence.


Secure your projects with grade 5 strength—add this 25-pack of Hillman 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: 5420221209

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Rhys Jones
Dallas, US
★★★★★ 5
Perfect for young pups who get bored easily!
Color: Bacon, Color: Bacon
Our pup recently turned 1 and gets bored very easily, so she’s always looking for something new to chew or play with. We got her this little alligator toy and she is OBSESSED with it! She carries it everywhere and plays with it constantly. I’m honestly surprised by how durable it’s been considering how much use it gets. If you want to help save your furniture and household items from becoming chew toys, do yourself a favor and grab this for your pup!
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Reviewed in the United States on May 19, 2026
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Stacy Corder
Houston, US
★★★★★ 4
Extremely durable but too large for our Aussie
Color: Bacon -Blue
This toy is very solid and seems like it would hold up well for aggressive chewers, but it ended up being too large and heavy for our Australian Shepherd. He had trouble comfortably holding it in his mouth and wasn’t very interested in chewing on it because of the size and weight. The quality itself seems good, but I would recommend it more for larger dogs with bigger jaws that enjoy heavier chew toys.
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Reviewed in the United States on May 28, 2026
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janet black
Grantham, US
★★★★★ 5
Indestructible toy
Color: Bacon
This is a great toy. I have a husky pit bull mix puppy that can chew anything. I swear that dog can chew the varnish off a furniture. He cannot chew this up.I highly recommend
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Reviewed in the United States on May 29, 2026
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Jea9
New York, US
★★★★★ 3
Indestructible?
Color: Bacon, Color: Bacon
This is after 1 week of arrgressive chewing. Not sure if it's safe for my dog.
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Reviewed in the United States on April 27, 2026
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Marybeth
Waukegan, US
★★★★★ 4
Beloved But Beware Microplastic Chip-Offs
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My doodle adores this thing and gnaws on it constantly. He has not been able to harm it, which is great. That’s the best part. Things to be aware of: 1. This is mostly molded plastic; it is a bit heavy and very hard. My dog tosses it into the air and if it lands on him, it HURTS. A lot. 2. While it’s sturdy, sharp teeth eventually gnaw pieces and little shavings off the toy. These are microplastics and could be harmful if your dog swallows them.
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Reviewed in the United States on January 13, 2026

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