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]
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SKU: 76513949889

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4.1 ★★★★★
Based on 16 reviews
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A
Verified Purchase
ANNEE
West Palm Beach, US
★★★★★ 3
Average pillow that might be great for some folks, not for me
Color: White, Size: Queen (Pack of 2)
I should have know this would be like every other pillow I've ever ordered. It's too puffy for me. No give. It claims to offer better support for side sleepers but instead it's giving me kinks in my neck. Not for me. Not adjustable. Not versatile. Standard materials. White. Can't speak to washability and durability as I have had it long and haven't washed it. fair price for two standard pillows. I really wish all these bedding companies would stop rolling and vacuum sealing pillows and such.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
M
Verified Purchase
Mrs. B
Battle Creek, US
★★★★★ 5
A Good Buy
Item Package Quantity: 2, Size: Queen
Marvelous. Firm, fluffy, and comfortable. A good buy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
L
Verified Purchase
lex
Louisville, US
★★★★★ 5
such amazing pillows
Item Package Quantity: 2, Size: Queen
THESE PILLOWS , idk if its because I haven't bought new pillows since I was little ? but these pillows are so soft and fluffy ! the support and shape retention are an easy 10/10 the Material seriously feels like hotel level luxury . so 10/10 appearance wise they look amazing with my pillow case . 10/10 overall these are MY reviews so make sure yall read the description and make sure its FOR YOU
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
O
Verified Purchase
Ober
Bozeman, US
★★★★★ 5
Neck posture/sleep pain improvement
Item Package Quantity: 2, Size: King
Pleasantly surprised. Only had for a week now, but bought to replace these old bamboo pillows that were so flattened it was causing shoulder pain or neck tightness maybe. But that has already improved my sleep just from using this week. Ordered the kings, they come vacuum sealed and so I opened and they sat for approx 24 hours or close enough. They didn't appear as puffy so I was a little doubtful but I punched and fluffed them myself and they were good. They have improved the quality of my sleep so far. They are soft and sounds weird but it's almost like your head weight or fluffing them activate it to be fully expanded afterwards. I like them, they're comfortable for me as a mainly side sleeper/sometimes back sleeper.
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Reviewed in the United States on May 24, 2026
G
Verified Purchase
Glynndy Oskouian
Dallas, US
★★★★★ 4
Didn’t hold its shape after 1 month.
Item Package Quantity: 4, Size: Queen
been using this pillow for about a month now, and here’s my honest take. At first, it was super comfortable — soft, supportive, and perfect for getting a good night’s sleep. It gave great neck support and felt like a solid upgrade. But after a few weeks, I did notice it started to lose its shape a bit. It’s still comfortable, just not as supportive as when I first got it. I find myself fluffing it more often now.
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Reviewed in the United States on April 1, 2026

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