Lock Nut Dimensional Standards MIL-S-7742 NASM25027 Finish Plain Hex Height 13/64 in Hex Type Standard Heavy Hex Hex Width 13/16 in Lock Type Flexible Top Material Stainless Steel Material Grade/Class 18-8 Maximum Temperature 1 200 Degrees F Minimum Temperature -70 Degrees F Pack Size Small Pack Removable Yes Resistance Properties Corrosion Resistant Impact Resistant Shock and Vibration Resistant System of Measurement Inch Thread Direction Right Hand Thread Fit 2B