What is the Part Number for the Shuttle Guide Pin (Screw)? March 25, 2015 15:45 Answer The part number is B44176 Applies To 40H Shuttle Screw Additional Information Related articles How do I convert the voltage for a 45HW solenoid? 40H FAQ's 45H & 47H Mortise Locks What is the Part Number for the 40H Trim Cassettes Is there a part number for the core decapping tool?