KMinor
Active Member
After grabbing the #12 instead of the #21 drill bit, and over widening an already widened hole, I find myself having to use an AN3 bolt in the place of a AD4-4 rivet in my rudder interior structure (as recommended by Van's). Can someone tell me if I should or should not use washers? Do I only use them to ensure proper grip length? If a bolt and nut only fit then is that all I should use? Thanks in advance.