Uxcell a15042300ux0080 M4x0.7mm Stainless Steel Serrated Hex Flange Nuts Locknuts (Pack of 10) Product Name : Hex Flange Nut; Fastener Type : Hex Serrated Flange Nut; Thread Diameter : M4/ 3/16" Thread Pitch : 0.7mm;Flange Diameter (d1) : 10mm/ 3/8";Width Across Corner Size (e) : 8mm/ 5/16" Width Across Flat Size (s) : 7mm/ 7/25";Nut Height (m) : 4mm/3/16" Material : 304 Stainless Steel; Color : Silver Tone Net Weight : 16g;Package : 10 x Hex FlangeNut