M8x1.25mm Stainless Steel Hex Flange Nylon Insert Lock Nuts 10 Pcs Product Name : Hex Flange Nut;Fastener Type : Hex Serrated Flange Nut;Thread Diameter : M8/ 5/16" Thread Pitch : 1.25mm;Flange Diameter (d1) : 18mm/ 11/16";Width Across Corner Size (e) : 14mm/ 9/16" Width Across Flat Size (s) : 13mm/ 1/2";Nut Height (m) : 10mm/ 3/8" Material : 304 Stainless Steel, Nylon;Color : Silver Tone Net Weight : 82g;Package : 10 x Hex FlangeNut