Hillman 1/2 in. Diameter x 4 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 25-Pack

Regular price $59.99

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Hillman 1/2 in. x 4 in. Grade 8 Hex Head Cap Screws (25-Pack)

Heavy-duty Hillman Grade 8 hex head cap screws deliver superior clamping force and durability for automotive, machinery, and structural applications. Made from heat-treated steel with a yellow dichromate finish, these partially threaded bolts provide reliable strength and corrosion resistance.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance in demanding applications
  • Durable Finish: Yellow dichromate coating adds wear and corrosion resistance
  • Reliable Seating: Washer face under head helps create a better seal and load distribution
  • Partial Thread: Coarse thread with unthreaded shank section for improved shear strength
  • Bulk Pack Convenience: 25-pack for shop, jobsite, or maintenance needs

Specifications Table:

Specification Details
Diameter 1/2 inch
Length 4 inch
Material Steel
Finish Heat-treated yellow dichromate
Grade Grade 8
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Number in Package 25 pack
Packaging Type Boxed
Tightening Method Use with wrench or drill/driver

Frequently Asked Questions (FAQ):

Q: What size are these bolts?
A: They are 1/2 inch diameter by 4 inch length with coarse threads.


Q: Are these fully threaded?
A: No. They are partially threaded along the shank.


Q: What grade are they?
A: Grade 8 for high-strength fastening.


Q: What tools are needed for installation?
A: Tighten using a wrench or compatible socket/driver on the hex head.


Q: What is included in the package?
A: A boxed 25-pack of Hillman 1/2 in. x 4 in. hex head cap screws.


Industrial Strength with a Polished Edge

These Grade 8 hex cap screws bring a refined, utilitarian elegance to any project, marrying strength with a luminous yellow dichromate sheen. The crisp hex head and clean shank create a tailored, architectural line that feels deliberate and modern. Style them with matte black brackets or raw oak for a striking contrast that celebrates function as form. It’s the kind of detail that elevates a space—quietly luxurious and undeniably purposeful.


Equip your project with Grade 8 reliability—add this 25-pack to your cart and build with confidence.

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