Hillman Zinc-Plated Grade 5 Hex Bolt, 5/16 in. x 3 in. (100-Pack)

Durable Grade 5 hex bolts for general fastening in wood, metal, and composite projects. Zinc-plated steel resists corrosion and features a partially threaded shank for strong clamping power.

Key Features:

• Corrosion-Resistant Zinc Plating: Helps protect against rust for long-lasting performance
• Grade 5 Strength: Heat-treated steel provides dependable holding power for general construction
• Partially Threaded Shank: Enhances grip and reduces shear movement between materials
• Hex Cap Head: Accepts higher torque for secure installations with wrenches or sockets
• Coarse 5/16"-18 Threads: Matches standard nuts and washers for straightforward assembly

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Are these bolts fully threaded?
A: No. They feature a partially threaded shank for improved clamping strength.

Q: What nut and washer grade should I use?
A: Use Grade 5 nuts and washers to match the bolt’s strength.

Q: What drill size is needed for installation?
A: Drill a hole matching the bolt diameter—5/16 inch.

Q: Can these be used outdoors?
A: Yes, the zinc plating offers corrosion resistance; however, for harsh or marine environments, consider more specialized coatings.

Q: What thread specification do these bolts have?
A: Coarse thread, 5/16"-18.

Streamlined Utility with a Polished Edge

These zinc-plated hex bolts bring a clean, silvery finish that elevates exposed hardware moments. The crisp hex head and partially threaded shank lend a tailored, utilitarian elegance to millwork and custom metal projects. Style them with matte black brackets for a chic, mixed-metal narrative. A small detail with big impact—perfect for refined, resilient spaces.

Secure your projects with dependable Grade 5 performance—add this 100-pack of Hillman hex bolts to your cart today.