These locking pins are designed to be used in conjunction with a casement stay. For base fix/sillmount stays, the replacement of a standard pin with a locking pin will allow the window to be locked in an open or closed position. The use of these with a sidemount stay is also possible, however they can only be locked when in the closed position with the locking pin, the use of the original pin will still be needed when in the open position.

These are locked with a supplied allen key.