SKU: 40902314932

Hillman 5/16 in. Diameter x 2-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

Sale price$53.99 Regular price$59.99
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Description

Hillman 5/16 in. Diameter x 2-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 8 Hex Head Cap Screws, 5 16" x 2 1 2", 100 Pack Heavy duty Grade 8 hex head cap screws engineered from heat treated steel for high strength fastening. Coarse thread design with washer face under the head ensures secure seating and reliable performance in demanding applications. Key Features: Grade 8 Strength: Heat treated steel delivers superior tensile strength for heavy duty projects Coarse Thread: Provides fast, secure engagement in

Hillman Grade 8 Hex Head Cap Screws, 5/16" x 2-1/2", 100-Pack

Heavy-duty Grade 8 hex head cap screws engineered from heat-treated steel for high-strength fastening. Coarse-thread design with washer face under the head ensures secure seating and reliable performance in demanding applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers superior tensile strength for heavy-duty projects
  • Coarse Thread: Provides fast, secure engagement in tapped holes or with hex nuts
  • Washer Face Head: Built-in washer face under the hex head improves sealing and load distribution
  • Partially Threaded Shank: Ideal for alignment and shear strength in bolted joints
  • 100-Pack Convenience: Boxed quantity for jobsite efficiency and bulk stocking

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Heat-treated yellow dichromate
Grade 8 (USS Grade 8)
Head Type Hex head with washer face
Diameter 5/16 inch
Length 2-1/2 inch
Thread Type Coarse (USS)
Threading Partially threaded
Number in Package 100
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are Grade 8 cap screws that are partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or a drill/driver equipped with the correct hex socket.


Q: Can these be used outdoors?
A: They are heat-treated steel with a yellow dichromate finish for wear resistance; for corrosive outdoor environments, consider additional coatings or appropriate washers.


Q: What thread type do these have?
A: Coarse thread (USS).


Q: Do they include nuts or washers?
A: No. This pack includes only the hex head cap screws.


Industrial Strength with Sleek Utility

These Grade 8 hex cap screws bring a refined, utilitarian edge to any build, marrying strength with clean geometry. The washer-faced hex head offers a crisp silhouette while ensuring a flawless seat. Style them in exposed hardware applications for a subtle punch of industrial chic, or keep them concealed for uncompromising performance. A staple of luxurious, precision-crafted spaces.


Upgrade your fasteners to Grade 8 performance—add this 100-pack to your project and secure a stronger, longer-lasting build.

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: 40902314932

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effie
Whiting, US
★★★★★ 5
Squeaky
Size: 8, Color: Black
They look incredible. But they're a little squeaky. Otherwise my husband loves the comfort. They go with any outfit
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Reviewed in the United States on May 11, 2026
B
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Boito
Dallas, US
★★★★★ 5
These fit very nicely, are comfortable, and work for my wide feet!
Size: 12 Wide, Color: Brown
Once I learned while shoe shopping in my youth that I needed wide-sized shoes, I wasn't able to easily choose from any shoes I saw in the store. I usually have to go find the wide widths and have to deal with the limited styles they have. Shopping online has been hit and miss, too. Sometimes, shoes are advertised as wide width, but end up still being too narrow. These shoes fit me just right. They were not too tight at the toes, gave good width at the arch, and the opening was large enough that I didn't have to undo every single lace just to get my foot in. They also look nice, and I'm sure will take a decent polish. Also, note that this does say it's an Oxford shoe, but it does have the open lacing and is more of a derby-style shoe. This also helps with sizing for my wide feet. If I didn't already have a pair of black shoes, I'd look at picking one of these up. My only reservation with these is that the soles are not dark-colored to complement a more formal style. I feel the white makes them a little more casual. The sole is also more transparent/opaque coloring at the heel and underneath, which you can kind of see-through, so keep that in mind. It's not fully clear, but is kind of transparent, which I was not expecting. I think it also shows where it picks up dirt as you wear it. Just more of a style cue one way or another. As a reference, I buy the 4E wide and Extra Wides in New Balance and Skechers. I also have a hard time getting any good fit in Nike shoes.
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Reviewed in the United States on October 2, 2023
M
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Michelle sealock
Bozeman, US
★★★★★ 5
Looks and feel good
Size: 10.5, Color: Black
Shoes look dressy but feel comfortable. They are stiff but very comfortable.
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Reviewed in the United States on June 8, 2026
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Riley H.
Bozeman, US
★★★★★ 5
Well made and affordable
Size: 10.5, Color: Brown
Very comfortable, great price!!!!!!
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Reviewed in the United States on April 30, 2026
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George M. Occhipinti
Lowell, US
★★★★★ 5
Very handsome shoe
Size: 7, Color: Brown
Beautifully made shoe. Comfortable, great fit. Very handsome on foot. Can wear with anything. Very pleased
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Reviewed in the United States on April 18, 2026

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