Fastener Type: Hex Serrated Flange Nut. Thread Diameter: 5/8"; Thread Size: 11 threads per inch; Flange Diameter(A): 32mm/1.26". Width Across Flat Size (B) : 24mm/0.94"; Nut Height (M) : 32mm/1.26". Constructed from carbon steel, zinc plated finish, good rust resistance, and durable to use.. Self-locking serrated flange digs into the material being fastened to help prevent loosening..
