SKU: 6791821376

Hillman 3/8 in. Dia x 1-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack

Sale price$43.19 Regular price$47.99
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 3/8 in. Dia x 1-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 100-PackHillman Grade 5 Hex Head Cap Screw, 3 8 in. x 1 1 2 in., 100 Pack Heavy duty hex head cap screws engineered from heat treated zinc plated steel for strong, wear resistant fastening. Grade 5 strength with partially threaded shank and washer face under the head delivers secure clamping in machinery, automotive, and structural applications. Key Features: Grade 5 Strength: Heat treated steel provides robust tensile strength for demanding projects

Hillman Grade 5 Hex Head Cap Screw, 3/8 in. x 1-1/2 in., 100-Pack

Heavy-duty hex head cap screws engineered from heat-treated zinc-plated steel for strong, wear-resistant fastening. Grade 5 strength with partially threaded shank and washer face under the head delivers secure clamping in machinery, automotive, and structural applications.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides robust tensile strength for demanding projects
  • Corrosion-Resistant Finish: Zinc plating helps protect against rust and wear
  • Washer Face Head: Built-in washer face improves seal and load distribution under the head
  • Partially Threaded Shank: Coarse threads with an unthreaded section for precise alignment and strong clamping
  • Versatile Use: Ideal for use with a nut or tapped hole; tighten with a wrench or drill

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 1-1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded along shank
Number in Package 100
Packaging Type Boxed
Use For use with a nut or in a tapped hole; tighten with a wrench or drill
Package Height 3.5 in
Package Width 4.3 in
Package Length 4.3 in
Package Weight 5.6 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are Grade 5 cap screws with a partially threaded shank and coarse thread.


Q: What size and length are the screws?
A: Each screw is 3/8 inch diameter and 1-1/2 inch length.


Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance, suitable for many indoor and light outdoor applications; for harsh environments, consider galvanized or stainless options.


Q: Do they have a built-in washer?
A: They feature a washer face under the hex head to improve sealing and load distribution.


Q: How many are in the box?
A: The package contains 100 screws.


Industrial polish that anchors the look

These hex cap screws bring a crisp, tailored hardware detail that feels both utilitarian and refined. The zinc sheen adds a subtle gleam, while the washer-faced head creates a clean, purposeful silhouette. Use them to unify exposed-joint furniture or workshop shelving for a cohesive, engineered aesthetic. A small detail with big impact—essential hardware for elevated, durable design.


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: 6791821376

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Reviewed in the United States on April 7, 2026
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Jeanine
Port Orchard, US
★★★★★ 5
This mat works so well for my kitty!
Color: Gray, Size: 18"x24"
This pet bed is such a smart find! Someone had the smart idea to make a bed that stays cool in the Summer and warm in the Winter! The material on the Winter side is soft, snuggly plush with a foil layer to hold in the heat. Flip the mat over and it’s the perfect cooling mat for Summer, with a cooling ice silk fabric to keep cool. The mat is the perfect size for a small dog or a cat. Spot cleaning is recommended as the preferred way to clean but the listing says that it can be washed using the gentle cycle. It needs to be air dried however. My cat wasn’t impressed to begin with, but once she got a little playtime with her favorite toy and some catnip, she settled right in. This is a good mat to fit right into her crate for traveling.
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Reviewed in the United States on March 23, 2026
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🧡VanOhVan🧡
Grantham, US
★★★★★ 4
Great Versatile Mat🧡
Color: Gray, Size: 18"x24", Color: Gray, Size: 18"x24"
The cooling side works well with the hot temps and the warming side is great for those chilly nights which is great. It's easy to clean and my cats took to it right away. The fabric is soft and the cooling side is cool to the touch, my cats love it. Exactly as described🧡
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Cooling dog bed
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Good size for a medium dog. It is thin but soft Cooling aspect works. Our cat likes it as well.
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Amazon Customer
Grantham, US
★★★★★ 5
Great for outdoor cats in the summer
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