Fastener Type: Hex Serrated Flange Nut. Thread Diameter: M8; Thread Pitch: 1.25mm; Flange Diameter(A): 17mm/0.67". Width Across Flat Size (B) : 13mm;Nut Height (M) : 7.8mm. Made of stainless steel 316, good rust and corrosion resistance.. Self-locking serrated flange digs into the material being fastened to help prevent loosening..
