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Hillman

Hillman 5/8 in. Diameter x 5 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack

Hillman 5/8 in. Diameter x 5 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack

Regular price $81.99 USD
Regular price Sale price $81.99 USD
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Hillman Grade 5 Zinc Hex Head Cap Screws, 5/8 in. x 5 in., 25-Pack

Heavy-duty hex head cap screws engineered from heat-treated zinc-plated steel for reliable clamping strength. Grade 5, partially threaded shanks deliver durable fastening in machinery, automotive, and construction applications.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides dependable tensile strength for demanding assemblies
  • Corrosion Resistance: Zinc finish helps protect against rust and wear in indoor/outdoor use
  • Hex Head with Washer Face: Designed for secure seating and better load distribution
  • Partially Threaded Shank: Improves shear strength and alignment in through-bolt applications
  • 25-Pack Convenience: Boxed quantity for project efficiency and jobsite replenishment

Specifications Table:

Specification Details
Diameter 5/8 inch
Length 5 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5 (USS)
Head Style Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Number in Package 25 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank (USS Grade 5).


Q: What material and finish are used?
A: Steel with a heat-treated zinc finish for added strength and corrosion resistance.


Q: What thread type do these bolts use?
A: Coarse thread.


Q: How are they installed?
A: Tighten using a wrench or a compatible driver on the hex head.


Q: What are the bolt dimensions?
A: 5/8 inch diameter by 5 inch length.


Industrial Poise with Polished Purpose

This hex cap screw is the quiet hero—sleek, zinc-kissed steel that anchors a space with confident restraint. I love the refined hex head, its washer face seating flush for a tailored, architectural finish. Use it to showcase exposed fasteners on custom shelving or hardware moments where form meets function. It’s a small luxury with big impact—precision you can see and trust.


Upgrade your builds with Grade 5 strength—add this 25-pack to your cart and fasten with confidence.

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