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Hillman

Hillman 7/16 in. Diameter x 4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 25-Pack

Hillman 7/16 in. Diameter x 4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 25-Pack

Regular price $51.99 USD
Regular price Sale price $51.99 USD
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Hillman Grade 8 Hex Head Cap Screws, 7/16 in. x 4 in., 25-Pack

Heavy-duty Grade 8 hex cap screws engineered from heat-treated steel for high-strength fastening. Coarse thread with washer face under the head delivers secure grip and better sealing in demanding applications. Ideal for machinery, automotive, and structural projects.


Key Features:

  • Grade 8 Strength: Heat-treated steel provides superior tensile strength for high-load applications.
  • Coarse Thread: Partially threaded shank for strong engagement and easier installation.
  • Washer Face Under Head: Improved bearing surface for a tighter, more secure seal.
  • Durable Finish: Yellow dichromate treatment enhances wear and corrosion resistance.
  • Versatile Use: Fits hex bolt applications; tighten with a wrench or driver.

Specifications Table:

Specification Details
Diameter 7/16 inch
Length 4 inch
Material Heat-treated steel
Grade 8
Thread Type Coarse (USS)
Head Style Hex head with washer face
Finish Yellow dichromate; heat treated
Number in Package 25 pack
Packaging Type Boxed
Brand Hillman
Tightening Method Wrench or drill/driver
Unit of Measurement Imperial
Package Height 3.2 in
Package Width 4.3 in
Package Length 5.3 in
Package Weight 4.8 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are Grade 8 cap screws with partial threading along the shank.


Q: What tools are required for installation?
A: Install using a wrench or a power driver with a hex socket.


Q: Do these have a washer face?
A: Yes, a washer face under the head provides a better bearing surface and seal.


Q: What is included in the package?
A: A boxed 25-pack of 7/16 in. diameter x 4 in. length hex head cap screws.


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


Industrial Strength, Clean Precision

These Grade 8 hex cap screws bring a refined, utilitarian edge to projects where performance meets aesthetics. The crisp hex head and robust, heat-treated steel create a subtle rhythm of hardware that feels both intentional and enduring. Use them to anchor exposed steel brackets or industrial shelving for a polished, architectural statement. Their reliable strength and golden dichromate sheen elevate the everyday into luxe functionality.


Secure your next build with high-strength Hillman Grade 8 hex cap screws—add this 25-pack to your cart today.

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