M4 Hex Nut - A2 Stainless Steel Left Hand thread DIN934

M4 Hex Nut - A2 Grade - Left Hand thread   Threads are left hand and these nuts tighten anti clockwise, the opposite way to standard nuts, they do not fit standard bolt   A2 stainless steel has good resistance to corrosion except in severe industrial and Marine Condition. Use A4 in a marine environment.   Where: e = point to point m = thickness s = across flats d = Thread   Thread Pitch - 0.7 mm   e - 7.66 mm (min) m - 2.9 mm (min) s - 7 d - M4   DIN934