pin slotSlotted Spring Pin. ... . COT Cotter Pins (JIS B 1351) MB Curved Washers. SSP Snap-Pins (R Pin) (JIS B 1351) RCP-Type External Spring Pins. JIS B 1251.The pin-slot joint is one of the most commonly used form of kinematic pairs, which with clearance will have a snificant effect on the motion and dynamic response of multibody