SKU: 35569724716

Hillman 5/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

Sale price$71.99 Regular price$79.99
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Description

Hillman 5/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 8 Hex Cap Screws, 5 16" x 3", 100 Pack Heavy duty Grade 8 hex head cap screws built from heat treated steel for demanding fastening applications. Coarse threaded with a washer face for secure seating and long lasting performance. Ideal for machinery, automotive, and construction projects. Key Features: Heavy Duty Grade 8: Engineered for high strength applications and superior load bearing performance Heat Treated Steel: Enhanced

Hillman Grade 8 Hex Cap Screws, 5/16" x 3", 100-Pack

Heavy-duty Grade 8 hex head cap screws built from heat-treated steel for demanding fastening applications. Coarse-threaded with a washer face for secure seating and long-lasting performance. Ideal for machinery, automotive, and construction projects.


Key Features:

  • Heavy-Duty Grade 8: Engineered for high-strength applications and superior load-bearing performance
  • Heat-Treated Steel: Enhanced durability and wear resistance for long service life
  • Coarse Thread: Reliable grip and faster assembly in tapped holes or with nuts
  • Washer Face Under Head: Better seal and seating against surfaces to reduce loosening
  • Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3 in. length

Specifications Table:

Specification Details
Brand Hillman
Product Type Hex Head Cap Screws
Diameter 5/16 inch
Length 3 inch
Material Steel
Finish Heat Treated (yellow dichromate referenced)
Grade 8
Thread Type Coarse
Threading Partially threaded along shank
Head Style Hex head with washer face under head
Number in Package 100 pack
Packaging Type Boxed
Tightening Method Wrench or drill
Package Height 3.2 in
Package Width 4.3 in
Package Length 5.3 in
Package Weight 7.6 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank.


Q: What tools are recommended for installation?
A: Tighten with a wrench or a drill fitted with the appropriate hex socket.


Q: What is the thread type?
A: Coarse thread.


Q: What material and finish do they have?
A: Made of heat-treated steel; yellow dichromate style finish referenced for strength and wear resistance.


Q: Can these be used in automotive or machinery applications?
A: Yes, as Grade 8 heat-treated steel hex cap screws, they are suitable for high-stress applications in automotive and machinery.


Industrial Strength with Clean, Purposeful Lines

These hex cap screws bring a refined, utilitarian elegance to any build—sleek heads and crisp geometry that read as confident and modern. The heat-treated Grade 8 steel delivers a commanding presence and resilience. Style them with blackened hardware and raw oak shelving to underscore a crafted, industrial vibe. Essential, functional, and impeccably strong—this is hardware that elevates the everyday.


Secure your projects with trusted Grade 8 strength—add this Hillman 100-pack to your toolkit 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: 35569724716

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Kristi Stair
Bozeman, US
★★★★★ 5
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Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS)
Love these! I doubled them up with zip ties for an extra lush look.
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Reviewed in the United States on April 6, 2026
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Beatriz F
New York, US
★★★★★ 5
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Material Type: Norfolk Pine Garland, Size: 9FT(2 PCS)
They are lush, of very good quality and look beautiful decorated. They added an immediate festive touch to my home. Highly recommended for this Christmas!"
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Reviewed in the United States on November 30, 2025
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angela
Cuba, US
★★★★★ 4
Beautiful Pine Garland
Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS), Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS)
I bought these and they are beautiful on my mantel. They look real. They are easy to mold into position. When hanging them one of the strands pulled apart so I would be cautious about pulling them too tight. I was able to use electrical tape to join the pieces back together again and wrap the material back around the joint and continue to use them. I would still purchase this again despite the issue I had.
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Reviewed in the United States on December 3, 2025
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Kelly Parker
West Palm Beach, US
★★★★★ 5
Great greenery
Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS)
We hung this on top of windows for Christmas - pretty & realistic!
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Reviewed in the United States on December 10, 2025
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Tim
West Palm Beach, US
★★★★★ 5
Very realistic, but easy to clean.
Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS), Material Type: Norfolk Pine Garland, Size: 6FT(2 PCS)
I thought it was going to be the more realistic material but it’s plastic. Honestly I don’t mind because it looks very realistic but since it’s plastic it makes it easier to clean. I love it, it’s thick and it gives the realistic vibe falling, I got it for the my fireplace and it looks great.
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Reviewed in the United States on September 30, 2025

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