Hillman Carriage Bolt 5/16 " - 18 X 4 " Grade 2 Coarse Round Head

DURABLE ZINC FINISH: Features a corrosion-resistant zinc exterior, making these carriage bolts ideal for both indoor and outdoor use. Maintains strength and appearance over time. | GRADE 2 STRENGTH: Manufactured to Grade 2 standards for reliable performance in a variety of fastening applications. Suitable for woodworking, construction, and general repairs. | SECURE FASTENING: Carriage bolts with nuts provide a secure hold for wood-to-wood or wood-to-metal connections. Rounded head design prevents pull-through and offers a clean look. | CONVENIENT SIZE AND QUANTITY: Each package includes two 4 inch long bolts, perfect for projects requiring long bolts. Dimensions are 10.6 in length, 4.3 in width, and 3.2 in height. | VERSATILE APPLICATIONS: Compatible with nut bolt assemblies and commonly used as headboard bolts or in automotive projects. Not compatible with stainless steel or aluminum bolts.