Fastener Type: Hex Serrated Flange Nut. Thread Diameter: M12; Thread Pitch: 1.75mm; Flange Diameter(A): 26mm/1.02". Width Across Flat Size (B) : 18mm;Nut Height (M) : 11.8mm. Made of stainless steel 201, wear-resisting and durable to use.. Self-locking serrated flange digs into the material being fastened to help prevent loosening..
