... insert lock nuts: sizesM5 and upfeatureslow carton,high tensile,stailessstandardDIN,ANSI,BSW,AS,JS,ISO,ETC.stype Hex nut,nylon insert nut,T nut,flanged nut ... ,long nut,wing nut,square nut,all-metal prevalling torque hex nut,thin nut,finish bright,zinc plated ...