hex flange nuts Diameter: M5 to M20 Grade: 4 to 10 Finish: plain, black, ZP HDG DAC HEX FLANGE NUTSDiameter: M5 to M20Grade/class ... : 4 to 10Finish: plain, black, ZP/YZP, HDG and DACFlange nuts,cap nuts,wing nuts slotted nuts,nylon lock nuts ... ,gunny bags,wooden boxT/T L/C30-45 DAYS Hex flange nuts