Hillman Grade 8 Hex Head Cap Screws, 9/16 in. x 3 in., 25-Pack

Heavy-duty Hillman grade 8 hex head cap screws deliver high torque capability and reliable clamping power for structural and automotive applications. Heat-treated steel with a yellow dichromate-style finish enhances strength and wear resistance, while the washer face under the head helps create a better seal.

Key Features:

• Grade 8 Strength: Heat-treated steel for superior tensile strength in demanding applications
• Hex Head + Machine Threads: Enables high torque tightening with a wrench or driver
• Washer Face Under Head: Helps improve bearing surface and sealing
• Partially Threaded Shank: Adds shear strength where clamping force is needed
• Bulk Value: 25-piece retail pack for project or shop use

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What size are these bolts?
A: They are 9/16 inch diameter by 3 inch length, coarse thread.

Q: Are these fully threaded?
A: No. They are grade 8 bolts that are partially threaded along the shank.

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

Q: What is the material and finish?
A: Heat-treated steel with a yellow dichromate-style finish for added wear resistance.

Q: How many are included?
A: 25 screws per package.

Industrial Strength, Refined Finish

These hex cap screws bring a polished, utilitarian edge to any project—quietly powerful, impeccably precise. The yellow dichromate sheen lends a subtle glow, elevating hardware from purely functional to thoughtfully considered detail. Style them with blackened steel brackets or warm woods to balance toughness with texture. A steadfast essential, they anchor spaces—and ideas—with luxury-grade reliability.

Power your build with grade 8 confidence—add this 25-pack of Hillman hex head cap screws to your cart today.