pin slotThe way to solve the Pin Slot puzzle and enter Jaheira’s Hideout is to place a Harp-shaped Pin in the empty Pin Slot. Where to find the Harp-shaped Pin in Baldur’s Gate 3? You can find it onSlotted 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.