DIRECT SUPPORT MAINTENANCE-GENERAL RIVNUT REMOVAL AND INSTALLATION
Drilling creates metal chips which may enter eyes and cause
serious injury. Eye protection is required.
a. Drill through head of rivnut, using same size drill used to make original hole. Counterbore
in rivnut will act as a drill guide.
b. Remove head of rivnut.
Do not puncture opposite face sheet of panel when
punching our rivnut shank.
c. Punch out shank or rivnut using a pin punch slightly smaller than hole in structure. Punch
only enough to disengage. Move rivnut aside to install new rivnut.
3. Repair rivnuts. When excessive torque is applied on screws attached on rivnuts, it may cause
a rivnut to spin (turn). Table 2 provides the maximum torque requirement for hardware to
prevent rivnut turning. To correct a spinning rivnut, proceed as follows:
a. Drill a .062 (+.003 - .0001) diameter hole by 1.00 inch long on the stem of the spinning
b. Install a headless straight pin.