SKU: 21659797743

Hillman 3/8 in. Diameter x 1-3/4 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$46.79 Regular price$51.99
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Description

Hillman 3/8 in. Diameter x 1-3/4 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman Grade 5 Hex Head Cap Screws, 3 8" x 1 3 4", 50 Pack These Hillman hex head cap screws deliver strong, reliable fastening for structural and machinery projects. Made from heat treated zinc plated steel, they offer enhanced strength and wear resistance with a washer faced head for better sealing. Ideal for use with a nut or tapped hole where a durable Grade 5 fastener is required. Key Features: Durable Construction: Heat treated zinc plated

Hillman Grade 5 Hex Head Cap Screws, 3/8" x 1-3/4", 50-Pack

These Hillman hex head cap screws deliver strong, reliable fastening for structural and machinery projects. Made from heat-treated zinc-plated steel, they offer enhanced strength and wear resistance with a washer-faced head for better sealing. Ideal for use with a nut or tapped hole where a durable Grade 5 fastener is required.


Key Features:

  • Durable Construction: Heat-treated zinc-plated steel resists wear and corrosion
  • Reliable Strength: Grade 5, partially threaded for secure holding power
  • Better Seal: Washer face under the head improves load distribution and sealing
  • Versatile Use: Fits nuts or tapped holes; tighten with a wrench or drill
  • Bulk Convenience: 50-pack for jobsite and shop projects

Specifications Table:

Specification Details
Brand Name Hillman
Finish Heat Treated Zinc
Grade Grade 5
Head Diameter 3/8 inch
Length 1-3/4 inch
Material Steel
Number in Package 50 pack
Packaging Type Boxed
Thread Type Coarse
Unit of Measurement Imperial
Type Hex Head Cap Screw

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: They are partially threaded along the shank, providing strong grip with reduced shear risk.


Q: What tools are required for installation?
A: Tighten with a standard wrench or compatible drill/driver and hex socket.


Q: Can these be used outdoors?
A: The zinc finish offers corrosion resistance, but for harsh environments consider galvanized or stainless options.


Q: What thread type do these have?
A: Coarse thread suitable for general-purpose fastening with nuts or tapped holes.


Q: Do they include nuts or washers?
A: No, the package includes only the hex head cap screws.


Industrial Poise with Polished Strength

These hex cap screws bring crisp, architectural detailing to hardware moments that matter. The heat-treated zinc finish offers a sleek, silvery sheen, pairing strength with refinement. Use them to elevate exposed fastener designs on shelving brackets or utility furniture. A quiet essential for a tailored, luxe industrial look.


Secure your projects with dependable Grade 5 strength—add this 50-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: 21659797743

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Reviewed in the United States on May 27, 2026
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★★★★★ 5
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Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Love this pillow set. Comfortable addition and nice and cool at all times. Going to be great for when the hot weather hits
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Reviewed in the United States on June 8, 2026
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Anna T
Houston, US
★★★★★ 5
As advertised for once! Lol
Color: Cooling Blue Cover, Size: Queen (Pack of 2), Color: Cooling Blue Cover, Size: Queen (Pack of 2)
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Reviewed in the United States on April 28, 2026
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Lana Cannon
Bozeman, US
★★★★★ 5
Adjustable pillows
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
I love these because they don't go flat. You can pull out whatever you need to make them comfy for you. They come in two different layers. So you have that protective cover over the main case that holds the memory foam. They're amazing to sleep on. I have had these last for years without going flat. If you hate flat pillows this is the way to go. They are very easy to wash. You just have to separate layers. They are very thick, you can adjust the thickness. Everyone in my house has at least one. They are worth the money. I have never had to replace them, because they went flat.
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Reviewed in the United States on May 6, 2026
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Louisville, US
★★★★★ 4
Good pillows
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Takes some getting used to but and the cooling doesn’t last very long in my opinion, but overall amazing comfy pillows. The materials are good and are washable. I mostly stopped waking up with a stiff neck and back.
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