Hillman 5/16 in. x 4 in. Grade 5 Heat‑Treated Zinc Steel Hex Head Cap Screws, 50-Pack
SKU: 94500615943

Hillman 5/16 in. x 4 in. Grade 5 Heat‑Treated Zinc Steel Hex Head Cap Screws, 50-Pack

Sale price$42.29 Regular price$46.99
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Description

Hillman 5/16 in. x 4 in. Grade 5 Heat‑Treated Zinc Steel Hex Head Cap Screws, 50-PackHillman Grade 5 Zinc Hex Head Cap Screws, 5 16 in. x 4 in., 50 Pack Durable grade 5 hex head cap screws for secure fastening in wood, metal, and machinery. Made from heat treated steel with a protective zinc finish, they feature a washer face under the head and coarse threads for reliable grip. Key Features: Grade 5 Strength: Heat treated steel delivers higher tensile strength for demanding applications. Corrosion Resistant Finish: Zinc plating helps

Hillman Grade 5 Zinc Hex Head Cap Screws, 5/16 in. x 4 in., 50-Pack

Durable grade 5 hex head cap screws for secure fastening in wood, metal, and machinery. Made from heat-treated steel with a protective zinc finish, they feature a washer face under the head and coarse threads for reliable grip.


Key Features:

  • Grade 5 Strength: Heat-treated steel delivers higher tensile strength for demanding applications.
  • Corrosion-Resistant Finish: Zinc plating helps protect against rust and wear.
  • Reliable Seating: Washer face under the hex head provides a tighter, more even seal.
  • Partially Threaded Shank: Improves shear strength and alignment where full-thread isn’t required.
  • Bulk Convenience: 50-pack boxed for shop, jobsite, or inventory use.

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 4 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5 (USS)
Head Type Hex head with washer face
Thread Type Coarse (USS)
Threading Partially threaded shank
Number in Package 50 pack
Packaging Type Boxed
Brand Hillman

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: Each screw is 5/16-inch diameter and 4 inches long.


Q: What thread type do they use?
A: Coarse thread (USS).


Q: Are these fully threaded?
A: No, they are partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or compatible driver on the hex head; use with a nut or tapped hole.


Q: Are they suitable for outdoor use?
A: The zinc finish offers basic corrosion resistance; for harsh or marine environments, consider higher corrosion-resistant coatings or stainless steel.


Industrial polish with dependable bite

These hex cap screws bring a crisp, utilitarian gleam that punctuates cabinetry, workshop fixtures, and custom metalwork with tailored precision. The heat‑treated, zinc‑plated finish reads clean and intentional, while the hex head adds a graphic moment of hardware. Style them with matte black brackets or raw oak to balance sheen with texture. It’s the quiet, engineered detail that elevates everyday builds to luxe, lasting craft.


Outfit your next project with these rugged, zinc-finished Grade 5 cap screws 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: 94500615943

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Madison G
Bozeman, US
★★★★★ 5
Perfect for light/moderate chewers
Size: Extra Small, Color: Blue, Size: Extra Small, Color: Blue
My dog wouldn’t stop biting on the toddlers plastic dinosaur toys, so I got him this because it’s similar to plastic. But not hard enough to where it could damage his gums, also not soft enough to break apart. It’s perfect and he’s very happy with it. My dog is 6 LB toy poodle for reference, I would say this is suitable for small dogs. I saw reviews saying that their dog absolutely destroyed it immediately, but then in the review pictures their dogs were baby bulldogs/german shepards! This isn’t meant for breeds like that, but if you have a smaller dog with smaller teeth then this is ideal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
K
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Kayann
Draper, US
★★★★★ 5
Quality and long lasting
Size: Extra Small (Pack of 2), Color: Blue
Highly Recommended!!! My 9 Shihtzu’s absolutely love the smell the durability and taste their thick so last long Thankfully I have to buy these every month!!!
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Reviewed in the United States on January 25, 2026
K
Verified Purchase
Kindle Customer
Natrona Heights, US
★★★★★ 4
Is this safe for my dog if she chews off little pieces.
Size: Small/Medium, Color: yellow
My Chihuahua loves this, however I want to know is it safe for my dog to swallow? She chews on it and gets little pieces of it and swallows them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
V
Verified Purchase
Valarie Amundsen
Los Angeles, US
★★★★★ 5
Chews
Size: Extra Small, Color: Blue
Chewy toys to keep my dogs, teeth, healthy very important. This was a very good price and I highly recommend buying it for your puppy.
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Reviewed in the United States on June 11, 2026
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Judy
Chelsea, US
★★★★★ 3
Dog likes some
Size: Extra Small, Color: Blue
Puppy will chew on this but not favorite. Over time it gets sharp pieces and dog could ingest. Not sure how safe for a small dog. Affordable but not long lasting.
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Reviewed in the United States on March 30, 2026

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