5/16 in. x 1-3/4 in. Hex Head Cap Screw (100-Pack)

Durable Hillman Grade 5 hex head cap screws made from heat-treated zinc steel for reliable fastening in general construction and repair. The partially threaded shank provides strong clamping force, while the corrosion-resistant finish stands up to demanding environments.

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Key Features:

• Grade 5 Steel Strength: Heat-treated zinc steel for dependable performance in structural and repair applications
• Corrosion-Resistant Finish: Zinc treatment helps protect against rust and wear
• High-Torque Hex Head: Hex cap design with machine threads supports strong tightening with wrenches or sockets
• Partially Threaded Shank: Promotes superior grip and reduces shear movement between materials
• Bulk Value Pack: 100-piece pack for jobsite efficiency and shop inventory

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Specifications Table:

Specification	Details
Diameter	5/16 in.
Length	1-3/4 in.
Head Type	Hex head cap screw
Material	Heat-treated zinc steel
Thread	Machine thread, partially threaded
Grade	Grade 5
Pack Quantity	100 pieces

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Frequently Asked Questions (FAQ):

Q: What tools are recommended for installation?
A: Use a wrench or socket sized for the hex head; pre-drilling a hole matching the bolt diameter is recommended for best results.

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Q: What grade are these cap screws?
A: They are Grade 5, suitable for most general-purpose fastening when matched with Grade 5 nuts and washers.

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Q: Are these fully threaded?
A: No, they are partially threaded to maximize clamping force and reduce shear.

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Q: What materials are these made from?
A: Heat-treated zinc steel for strength and corrosion resistance.

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Q: Can these be used outdoors?
A: Yes, the zinc finish provides corrosion resistance; however, for harsh or marine environments, consider additional protection.

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Industrial Poise in a Polished Package

These hex head cap screws bring a quiet, utilitarian elegance to exposed mechanical details. The heat-treated zinc finish feels crisp and intentional, letting hardware become part of the story. Use them with blackened steel brackets or raw oak to create a tailored contrast. It’s the refined hardware choice that elevates everyday assembly to luxe craft.

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Stock your shop with this 100-pack of Grade 5 Hillman cap screws for strong, corrosion-resistant fastening that’s ready for any project.