Ribbed Neck Steel Zinc Plated Carriage Bolts 5/16-18 x 3 are durable fasteners designed for woodworking, metal fabrication, and outdoor projects. Made from steel and finished with zinc plating, these carriage bolts offer reliable strength and corrosion resistance for long-lasting performance.

The ribbed neck design provides added grip and helps minimize rotation during installation, while the square neck under the head helps prevent turning when tightened with a nut in wood or other substrates.

• Size and thread: 5/16-18
• Length: 3 inches
• Material: Steel
• Finish: Zinc plated for corrosion resistance
• Design: Ribbed neck for improved gripping and reduced slip
• Recommended uses: Furniture, decking, outdoor constructions, and other joinery projects
• Installation tip: Use with a nut on the opposite side; pre-drill as needed for clean seating

Choose these carriage bolts for a secure, clean finish in any project that demands dependable performance and rust resistance.