SKU: 76513949889

Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc 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 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 5 Hex Head Cap Screws, 5 16 in. x 3 in., 100 Pack These Hillman Grade 5 hex head cap screws deliver reliable fastening strength for heavy duty projects. Made of heat treated zinc plated steel with coarse threads, theyre ideal for securing machinery, automotive, and structural components. The washer face under the head provides a better seal and load distribution. Key Features: Heavy Duty Strength: Grade 5 heat treated steel withstands

Hillman Grade 5 Hex Head Cap Screws, 5/16 in. x 3 in., 100-Pack

These Hillman Grade 5 hex head cap screws deliver reliable fastening strength for heavy-duty projects. Made of heat-treated zinc-plated steel with coarse threads, they’re ideal for securing machinery, automotive, and structural components. The washer face under the head provides a better seal and load distribution.


Key Features:

  • Heavy-Duty Strength: Grade 5 heat-treated steel withstands demanding loads
  • Corrosion Resistant: Zinc finish helps protect against rust and wear
  • Secure Fit: Coarse thread for strong grip in tapped holes with nuts
  • Better Seal: Washer face under the head improves load distribution
  • Convenient Bulk Pack: 100 screws sized 5/16 in. diameter x 3 in. length

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Heat Treated Zinc
Grade 5
Diameter 5/16 inch
Length 3 inch
Thread Type Coarse (USS)
Head Type Hex head with washer face
Number in Package 100
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank, typical of Grade 5 hex cap screws.


Q: What tools are needed for installation?
A: Install with a wrench or socket; a drill with the appropriate driver can be used for faster assembly.


Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance suitable for many indoor and some outdoor applications; for harsh environments, consider stainless or hot-dip galvanized fasteners.


Q: What thread type do they use?
A: Coarse thread (USS) for strong engagement and easier assembly.


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


Industrial polish with steadfast performance

These hex cap screws bring a crisp, engineered clarity to any build, marrying strength with a clean zinc sheen. The faceted hex head and washer face read as purposeful detailing—perfect for exposed hardware moments. Pair them with matte black brackets or raw oak to underscore a refined, utilitarian aesthetic. Essential hardware that anchors spaces with confidence and quiet luxury.


Secure your projects with Grade 5 strength—add this 100-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: 76513949889

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4.0 ★★★★★
Based on 8 reviews
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Customer Review
Lexington, US
★★★★★ 4
Comforter is nice, sheets are alright. Color is true!
Color: Burnt Orange, Size: Queen
This is a decent comforter set. The actual comforter isn’t too heavy, and would be perfect spring through fall in the Midwest. It’s a true queen size fit and the burnt orange color looks as it does in the photos. I ordered these before it mentioned they’re polyester. They definitely don’t feel as breathable as cotton sheets but as far polyester goes, they feel soft. The sheets wrinkle easily but the comforter feels durable. If you’re looking for an affordable sheet set and you’re cool with polyester, this is a good option. Also of note is that 2 of the pillow cases have a little extra fabric on the outer rim to look more “decorative.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
V
Vmazon
Lexington, US
★★★★★ 5
Comfortable and Attractive Bedding Set That Offers Great Value
Color: Pink, Size: Queen
This queen bedding set is a nice combination of comfort and style. The pink color looks beautiful, and the textured comforter gives the bed a cozy, modern appearance. The sheets feel soft and comfortable, while the comforter is lightweight yet provides enough warmth for a restful night’s sleep. I appreciate that the set includes everything needed for a complete bedding setup, making it a convenient option. It’s also easy to care for and holds its appearance well after washing. While it may not have the feel of a premium luxury set, for the price it’s not bad at all and offers solid value. Overall, it’s a great choice for anyone looking for an affordable and attractive bedding set.
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Reviewed in the United States on June 2, 2026
J
JLN
New York, US
★★★★★ 5
Lightweight, very smooth and comfortable comforter sheet set an a very attractive price
Color: Ivory, Size: Queen, Color: Ivory, Size: Queen
Such a well priced, attractive bed in a bag (comforter and sheet set) with the most lightweight comforter I have ever come across that is not a down comforter. This one is filled with 100% polyester with a 100% microfiber exterior. The sheets are called microfiber, which I am sometimes not a fan of as sometimes they feel too stretchy and hot. However, these feel good, and almost more like a smooth percale. It’s nice to the touch. Color is attractive in a clean ivory color. Going back to the comforter, I love the lightness of natural down, but somehow I have developed a sensitivity to the feathers which make me sneeze. This one can easily be thrown into the washer and dryer and feels equivalently light as my down comforters. It weighs in at slightly over a pound (though I could only carry it onto the scale) and I absolutely love the lightness of it. I did wash it in the washer and dried it in a dryer on normal heat. Came out with no wrinkles and very fluffy. Five stars!
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Reviewed in the United States on May 30, 2026
L
Lenta Bear
Los Angeles, US
★★★★★ 4
Nice Comforter, Thin Sheets
Color: Blue, Size: Queen, Color: Blue, Size: Queen
I bought this comforter set for my guest bedroom, and the price was great. It’s really pretty and fits the bed perfectly. It includes a comforter, a sheet set with pillowcases, and two pillow shams. It arrived vacuum-sealed, when I opened it, I was impressed by how soft it felt—just right for a comforter. It seems like it will be warm yet cooling at the same time, and I love its thickness. The only downside was the sheet set. While the comforter is fluffy and cozy, the sheets felt cheap—very thin—and I prefer them thicker. They’re labeled 100% polyester but are just too thin for my taste. If you’re not picky about sheets, this set would be perfect. They are soft, just not thick enough. Overall, I really like the comforter, but I’ll use my own sheets because of the thinness of the included ones. I would have given it five, but the sheets bring it down to four.
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Reviewed in the United States on June 6, 2026
S
shantel
Birmingham, US
★★★★★ 5
Beautiful Sage Green Set That is Super Soft and Cozy!
Color: Sage Green, Size: Queen
​I am absolutely in love with this sage green bedding set. The queen comforter has a gorgeous pre washed crinkled texture that gives the whole bedroom a really cozy, aesthetic look without needing to be ironed. It is incredibly fluffy and has just the right amount of weight to it, making it perfect to use all year round. The brushed sheets that come with the bed in a bag are surprisingly soft against the skin, and everything fit my queen mattress perfectly right out of the box. ​The color is a beautiful, calming sage green that matches my room decor perfectly. I have already washed the sheets and comforter once, and they held up great in the machine without losing their softness or shrinking.
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Reviewed in the United States on June 4, 2026

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