Hillman Grade 8 Hex Head Cap Screws, 5/16 in. x 3/4 in. (100-Pack)

Heavy-duty Grade 8 hex head cap screws made from heat-treated steel for high-strength fastening. Sized 5/16 in. diameter by 3/4 in. length with coarse threads, ideal for machinery, automotive, and structural applications.

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Key Features:

• High Strength Grade 8: Heat-treated steel delivers superior tensile strength for demanding applications.
• Coarse Thread: Provides secure fastening and quicker assembly in tapped holes or with nuts.
• Hex Head Design: Compatible with wrench or drill drivers for easy tightening and removal.
• Washer Face Under Head: Enhances load distribution and resists loosening.
• Bulk 100-Pack: Boxed packaging ensures ample supply for projects and maintenance.

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Specifications Table:

Specification	Details
Diameter	5/16 in
Length	3/4 in
Material	Heat-treated steel
Finish	Heat Treated
Grade	8
Thread Type	Coarse
Head Type	Hex head
Pack Quantity	100
Packaging Type	Boxed
Each Weight	2.500 lb (package)

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Frequently Asked Questions (FAQ):

Q: Are these screws fully or partially threaded?
A: They are partially threaded Grade 8 hex cap screws.

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Q: What tools are recommended for installation?
A: Install with a wrench or a drill driver that fits the hex head.

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Q: Do these work with standard nuts and washers?
A: Yes, they are designed for use with compatible nuts and washers matching the 5/16 in. coarse thread.

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Q: What is the thread type?
A: Coarse thread.

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Q: What applications are they suited for?
A: Ideal for automotive, machinery, and structural fastening where high strength is required.

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Industrial Strength, Clean Precision

These Grade 8 hex cap screws bring a refined industrial edge to any project, pairing robust performance with crisp geometry. The heat-treated steel and coarse thread offer dependable grip while the hex head adds a graphic, utilitarian statement. Style them with black oxide hardware for a modern contrast in exposed mechanical details. A staple of elevated, hardworking design, they anchor spaces with confidence and clarity.

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Upgrade your fasteners to Grade 8 strength—add this 100-pack of Hillman hex cap screws to your cart today.