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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J C
Cuba, US
★★★★★ 5
Very useful USB hub
Color: Black
Works as described. This thing has more inputs than most will ever need. I thought it would be big and bulky but it doesn't take up much space at all. It's super lightweight, except for the power supply but even then, it's not that heavy. I'm currently using some of the USB 3.2 ports and 1 of the USB charging ports with zero issues and now I'm able to plug more devices without fear of my PC struggling to communicate with them all. It's a little pricey compared to other USB hubs but I feel it's totally worth it.
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Reviewed in the United States on December 3, 2025
S
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Steven
Chelsea, US
★★★★★ 5
Super product.
Size: 12 Outlet, Size: 12 Outlet
Really happy with this strip. It mounts to the wall on the ends, which is MUCH better than attaching with hidden keyholes. Having a lighted switch above each outlet is very useful and saves both power and extends the life of components not in use. The cable retention on both ends is genius. Wish I had one of these years ago
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Reviewed in the United States on April 24, 2026
S
Verified Purchase
SH
Carnegie, US
★★★★★ 5
Great power strip for my shop vac and miter saw!
Size: 12 Outlet
Works great in my garage! I currently have it mounted on the wall and have my shop vac and miter saw plugged in. It makes it incredibly easy to turn the master switch on and have my shop vac and miter saw turn on at the same time. When I’m not using the shop vac and miter saw combo, I shut off their individual switches and I’m free to use the other plugs so the individual switches for each outlet are very handy! It’s very durable as I have it mounted on the wall and has an adequate number of outlets for my work bench. The size is just right and it was very easy to mount. My only suggestion is to space the screw holes on the power strip so that it can be mounted between 2 standard wall studs 16 inches on center for unfinished wall mounting. The screw holes didn’t line up like this so I could only put screws on one side of it and I needed to improvise a way to secure the other side of the power strip to the next stud so it was as mounted securely and didn’t move as I plugged and unplugged things.
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Reviewed in the United States on September 14, 2025
M
Verified Purchase
Milton Lee
Omaha, US
★★★★★ 5
Perfect power strip
Size: 6 Outlet
Great value for the money. I love the switches for each plug and has lights at each plug; lets you know when you have a outlet switched on, love that. Well-made, heavy-duty cord and circuit breaker, all high quality.
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Reviewed in the United States on May 26, 2026
A
Verified Purchase
Arthur Liegeois
Omaha, US
★★★★★ 5
3300 Joules surge protected, sturdy and perfect for my office
Size: 12 Outlet
I purchased this power strip once a few months ago, and just purchased a second one, both for my office! I use the first one screwed at the bottom of my desk to plug in my Mac, 2 monitors, 2 Homepod, 1 external drive, my Echo Dot and a few other things. What I love about this is: 1. It has 12 slots that are perfectly spread out so that all of the power plugs, even the bulkier ones, fit nicely next to each other 2. There is a killer switch on each slot, which makes it globally safer if one of the outlet fries, or if I want to turn off some of the devices while I am away. It also includes a 3300 Joules surge protection, which is quite high comparer to similar power strips! Luckily, I never had to test its efficiency yet... I am pretty sure it won't replace a proper but much pricier UPS device, but it's better than nothing! 3. I love the fact that you can contain all of the wires on the sides, so that they don't dangle and don't get tangled. 4. This is very well built, it feels sturdy. I don't especially like the yellow color, but to be honest, it's hidden anyway! So I just purchased another one to plug in all of the devices that I have on the other side of my office: the eero modem, echo amp, Mac Mini, Nas Drive, printer and the Philips Hue hub and lights, and it all works like a charm, and doesn't catch dust as much as before. Most of the time, I'm very critical about what I purchase, but in this case, I think it's great and worth sharing ;-)
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Reviewed in the United States on June 26, 2024

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