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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Jinni
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Reviewed in the United States on March 15, 2026
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★★★★★ 5
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Reviewed in the United States on April 14, 2026
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Kitty Royse City
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StayCoolHoneyBunny
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Cecilia M
Omaha, US
★★★★★ 5
Durable, Precise, and Perfect for Coffee on the Go!
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I bought the Mongdio Espresso Measuring Cup as a Father’s Day gift because my husband is always brewing espresso to take with him—and this has become his new favorite tool. Key Highlights: Stainless Steel Durability: Unlike the thin glass cups we tried before (which shattered all too easily), this stainless steel model feels rock-solid and built to last. 100 ml / 3.4 oz Capacity: Perfectly sized for a double shot, ensuring you never overflow or waste a drop. Double Spouts: Makes pouring directly into travel mugs or to-go tumblers a breeze—no drips, no mess. Wooden Handle: Stays cool to the touch and adds a touch of style at the same time. Sleek Black Finish: Looks great on any countertop and hides water spots or fingerprints. Pros Heavy-duty stainless steel construction Accurate 100 ml measurement marks Dual pouring spouts for precision Cool-touch wooden handle Cons Handle can be a bit bulky in small drawers Black finish may scratch over time if stacked Final Verdict: If you want a reliable, spill-free way to measure and pour espresso—especially for mugs on the go—this Mongdio cup is a no-brainer. It’s sturdy, precise, and looks great in any kitchen. Highly recommend!
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