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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Drc
Whiting, US
★★★★★ 5
Very stylish and functional!
Color: Brown
Very stylish and functional -- I was very pleased! A great compliment to any man's dresser top or desk drawer.
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Reviewed in the United States on July 17, 2025
J
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Jean Davis Olecki
Dallas, US
★★★★★ 5
Great purchase
Color: Brown
Purchased to organize my son’s beside table. So well made, sturdy, and the brown matches his night stand perfectly. Compartments to fit anything he needs to stash in there and keeps his things from sliding around in the drawer. Well worth the price
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Reviewed in the United States on October 12, 2025
T
Verified Purchase
Tina Anderson
San Leandro, US
★★★★★ 5
Well made for organization
Color: Brown
The trays were purchased for my brother who has Parkinson’s disease. He’s able to pick things out of it with the low side profile. One sits on the top of his dresser and the other inside a drawer. They seem to be quality made.
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Reviewed in the United States on November 19, 2025
R
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Rajan Mistry
Dallas, US
★★★★★ 4
Works Great
Color: Black
Got this for my office desk to keep everything arranged and the valet tray works out perfectly. The leather is holding up nicely, and the black color looks great on my desk. Everything fits nicely, and the little door on top swings with ease. The inner lining has a nice material thought it either wasn't fit right to the boxes, or it has delaminated so on some of the longer edges, I need to reglue them back to the sides. Once I do that, it'll be perfect. If the manufacturer is reading this review, please take a look at the adhesive used. Other than that it is beautiful and recommend.
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Reviewed in the United States on January 16, 2025
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TJ Wilson IV
Natrona Heights, US
★★★★★ 5
Bedroom organization
Color: Black
A great asset for keeping the inside of your nightstand organized. Looks great!!
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Reviewed in the United States on May 29, 2026

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