SKU: 82798532720

Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread (100-Pack)

Sale price$22.49 Regular price$24.99
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Description

Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread (100-Pack)Hillman 5 16 in. x 3 4 in. Grade 5 Hex Cap Screws (100 Pack) These Hillman hex head cap screws are Grade 5 steel with a heat treated zinc finish for strength and wear resistance. Coarse threaded and partially threaded, theyre ideal for fastening into tapped holes or with nuts in general construction and repair. Key Features: Grade 5 Strength: Heat treated steel delivers reliable tensile strength for demanding applications Corrosion Resistant Finish:

Hillman 5/16 in. x 3/4 in. Grade 5 Hex Cap Screws (100-Pack)

These Hillman hex head cap screws are Grade 5 steel with a heat-treated zinc finish for strength and wear resistance. Coarse-threaded and partially threaded, they’re ideal for fastening into tapped holes or with nuts in general construction and repair.


Key Features:

  • Grade 5 Strength: Heat-treated steel delivers reliable tensile strength for demanding applications
  • Corrosion-Resistant Finish: Zinc coating helps protect against rust and wear
  • Coarse Thread, Partially Threaded: Ensures strong hold and easier starts in tapped holes
  • Washer Face Under Head: Provides a better seal and load distribution
  • Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3/4 in. length for projects and maintenance

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 3/4 inch
Material Steel
Finish Heat Treated Zinc
Grade 5
Thread Type Coarse (USS)
Threading Partially threaded shank
Head Type Hex head with washer face
Number in Package 100 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 or partially threaded?
A: They are partially threaded along the shank with a coarse thread.


Q: What grade are these bolts?
A: Grade 5, suitable for many automotive, machinery, and general fastening uses.


Q: Can I use them outdoors?
A: The zinc finish offers basic corrosion resistance, but for harsh or marine environments consider galvanized or stainless hardware.


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


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


Industrial polish with everyday reliability

A crisp hex head in a cool zinc tone brings an understated, utilitarian elegance to built-ins and workshop fixtures. I love the washer-faced head—such a thoughtful detail that sits flush and clean. Pair these with matte-black brackets or raw oak shelving to strike a refined, hardworking contrast. It’s the quiet hardware hero that makes a space feel intentionally crafted.


Equip your project with Grade 5 strength—add this 100-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: 82798532720

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Amazon Customer
Los Angeles, US
★★★★★ 5
Excellent Office Chair
Color: Black+white, Size: Pack of 1
I just received my TRALT Office Chair. First of all, I was impressed with the packaging of this item. When I opened the box each piece of the chair was wrapped in plastic or bubble wrap. Everything in the box arrived safely and without damage. Secondly, the instructions to assemble the chair were very each to follow. I was impressed with the Allen wrench which had a handle attached to it. This made screwing in the screws very easy. I was able to assemble the chair without any difficulty. Lastly, the look of the chair and the comfort is exceptional. I ordered the black/white chair which looks amazing. The comfort of the chair is really excellent. My back is supported by the lumbar seat and having the armrests being able to go up when not needed is wonderful. The quality of the chair is definitely worth the price.
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Reviewed in the United States on May 9, 2026
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Jennifer3002
Belleville, US
★★★★★ 4
a good choice
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
Assembled chair only to find that the lift cylinder was faulty. Would have preferred to be able to just get a replacement cylinder but calling China didn't seem like a viable option. Guessing which one & buying it online would involve paying for a good portion of what the chair cost. Customer service could only offer a replacement or refund. We're disassembling (so much fun?!) to send it back. The chair itself was very comfortable, assembled fairly easily and instructions pretty clear. Again, if we could only have asked the seller for the replacement part......**Update**...Or if the instructions that seemed so clear were clearer!, as we started to disassemble, we decided to see what would happen if the tension knob (see photo) was loosened. IT ALLOWED THE LIFT CYLINDER TO WORK. Not at all what the instructions say. At any rate, we're keeping the chair.
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Reviewed in the United States on June 4, 2026
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jinju jiang
Bozeman, US
★★★★★ 5
This chair is amazing
Color: Sky Blue, Size: Pack of 1, Color: Sky Blue, Size: Pack of 1
⭐⭐⭐⭐⭐ Absolutely love this chair! It was super easy to assemble—I had it set up in no time with clear instructions and minimal effort. The comfort level is fantastic; the seat cushion is just right and the back support makes it great for longer sitting sessions. The color is beautiful in person—clean, modern, and adds a fresh pop to the room without being overwhelming. I also really like the smooth wheels and sturdy build; it feels stable and well-made. Overall, this is a great combination of style, comfort, and value. Highly recommend!
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Reviewed in the United States on May 4, 2026
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★★★★★ 5
Excellent Ergonomic Chair
Color: Black, Size: Pack of 1
I am incredibly impressed with this chair. The setup was a breeze and took me less than 20 minutes from start to finish. It is exceptionally comfortable, offering fantastic ergonomic support that keeps my back pain-free during long hours of sitting. The materials feel premium and highly durable. Plus, the included 5-year warranty is incredibly helpful and provides great peace of mind. I highly recommend it to anyone looking for a reliable workspace upgrade!
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Maria Velasco
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★★★★★ 5
Comfortable, Sturdy, and Great for Long Hours
Color: Black, Size: Pack of 1
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