(4) Quikfins with (8) M6 threaded pins.
Replace your stock M6 screws with the Quikfin pins, hand thread to the correct depth and snap it down!
4mm hex integrated into the back of the Quikfin just in case your fin threads are a little tight.
Quikfin tool less fin quick change set w/ 8 pins
Works with metric M6 pins.
Cabrinha, North, latest Slingshot and others