Carriage Bolt Standards: ANSI/ASME
Carriage Bolt Size: from 1/4 to 4 inches (length to 20-inch max)
Carriage Bolt Materials: A193 B7/A194 2H; A193 B7M/A194 2HM; A320 L7/A194 7; A320 L7M/A194 7M
Carriage Bolt Surface: black; cadmium-plated; ptfe-plated