What is the Part Number for the Shuttle Guide Pin (Screw)? Follow Answer The part number is B44176 Applies To 40H Shuttle Screw Additional Information Related articles 45H & 47H Mortise Locks I have a job that needs a corrosion resistant finish. What finish should I use? Service Manuals What is the part number for the MLR mounting screws? How do I order an inverted cam?