Lock Nut Features: 1) Various kinds of nuts available, 2)with different sizes and tensile strength DIN1587 hexagon domed cap ... 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 ...