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Hillman

Hillman 1/2 in. Dia x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Hillman 1/2 in. Dia x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Regular price $80.21 USD
Regular price Sale price $80.21 USD
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Hillman 1/2" x 3" Grade 8 Hex Head Cap Screws (50-Pack)

Heavy-duty hex head cap screws made from heat-treated zinc-coated steel for high-strength fastening. The 1/2-inch diameter by 3-inch length bolts are ideal for automotive, machinery, and structural applications where reliable clamping force is essential.


Key Features:

  • High Strength Grade 8: Heat-treated steel delivers superior tensile strength for demanding applications
  • Corrosion-Resistant Finish: Zinc/yellow dichromate coating helps protect against rust
  • Precise Hex Head: Designed for secure wrench grip and consistent torque application
  • Coarse Thread: Optimized for quick installation and strong hold in compatible nuts/tapped holes
  • Bulk Value Pack: 50 screws to tackle larger projects and ensure you have spares on hand

Specifications Table:

Specification Details
Hardware screw type Hex Cap
Finish Heat Treated; Zinc/Yellow Dichromate
Material Steel
Diameter 1/2 in
Length 3 in
Thread Type Coarse
Grade Grade 8
Head Diameter 0.58 in
Color Yellow
Threaded Yes
Units Inch
Count 50 per pack

Frequently Asked Questions (FAQ):

Q: What thread type do these screws use?
A: They feature coarse threads suitable for standard Grade 8 hex cap screw applications.


Q: Are these suitable for outdoor use?
A: The zinc/yellow dichromate finish offers corrosion resistance; for highly corrosive environments, consider stainless or additional protective measures.


Q: What tools are needed for installation?
A: Use a compatible wrench or socket sized for the 1/2-inch hex head to tighten to the required torque.


Q: Can these be used in automotive applications?
A: Yes—Grade 8, heat-treated steel makes them appropriate for many automotive and machinery uses when the size and thread match specifications.


Q: How many screws are included?
A: This pack contains 50 screws.


Industrial Strength with a Refined Finish

These Grade 8 hex cap screws bring a sleek, warm zinc dichromate glow to utilitarian hardware, elevating the craft of assembly. The crisp hex profile becomes a subtle design statement while delivering uncompromising strength. Style them in exposed mechanical joints for an industrial-chic detail that feels intentional and polished. Consider them essential hardware—where performance and aesthetic restraint meet luxurious functionality.


Upgrade your project with high-strength, corrosion-resistant fasteners—add this 50-pack to your cart today.

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