Grade 8 Zinc Yellow Plated Carriage Bolts 5/16-18X7 1/2 are a high-strength fastener designed for demanding timber-to-timber connections. Built from Grade 8 steel and finished with a durable zinc yellow plating, these carriage bolts deliver exceptional strength and corrosion resistance for outdoor and indoor projects.

Key Features

• Material: Grade 8 steel for superior tensile strength
• Finish: Zinc yellow plated for corrosion resistance and a long-lasting decorative look
• Head and neck: Domed, round head with a square neck for secure driving and precise snug fit
• Thread size: 5/16-18 UNC
• Length: 7-1/2 inches

Ideal Uses

• Timber-to-timber connections in decks, framing, and heavy wood installations
• Furnishings, outdoor structures, and construction projects that require strong, durable fasteners

For best results, pair these carriage bolts with matching nuts and washers of the appropriate size. Pre-drill holes to ensure a clean drive and proper alignment, and tighten to recommended torque to avoid over-stressing the fastener.

Why Choose Grade 8 Zinc Yellow Plated Carriage Bolts?

• High tensile strength and durability for demanding woodworking tasks
• Reliable, corrosion-resistant finish that helps protect the fastener in variable environments
• Classic carriage bolt design provides easy installation and a clean, finished look