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Propeller Bolt Torque
Here are the appropriate torque measurements when installing your propeller:

1/4 bolts-----------132 inch pounds (+ or - 10 inch pounds)

5/16 bolts----------144 inch pounds (+ or - 15 inch pounds)

3/8 bolts------------200 inch pounds (+ or - 20 inch pounds)

7/16 bolts-----------250 inch pounds (+ or - 25 inch pounds)

1/2 bolts------------300 inch pounds (+ or - 25 inch pounds)

NOTE: 12 inch pounds equal one foot pound