Aerotight M4 A2 Stainless steel Self-Locking Nut

Aerotight M4 A2 Grade Stainless Steel Self-Locking Nut   Thread Size (Nom) - M4 Pitch - 0.7 mm A/F Max- 7 mm N-Dia Max - 6.65 mm H Max - 4.79 mm F Min - 2.69 mm   Aerotight self locking nuts are: All metal Stiff nut with no inserts Can be re-used Will stay in position whether tightened down or not No special tools required When assembled on the screw, 2 full threads should protrude through the nut   A2 stainless steel has good resistance to corrosion except in severe industrial and Marine Condition. Use A4 in a marine environment.