Fastener Type: Hex Serrated Flange Nut. Thread Diameter: M12; Thread Pitch: 1.75mm; Flange Diameter(A): 24.5mm/0.96". Width Across Flat Size (B) : 18mm;Nut Height (M) : 11.8mm. Made of stainless steel 316, good rust and corrosion resistance.. Self-locking serrated flange digs into the material being fastened to help prevent loosening..
