Threading's Length Of The Shaft - MARINE PROPELLER JPROP Use And Maintenance Handbook

Section 3 - THREADING'S LENGTH OF THE SHAFT
While tightening the retaining nut make sure that:
1 - it doesn't meet with a strong resistance
2 - the threading of the shaft doesn't bottom out in retaining nut
3 - the cones of the shaft and of the propeller match perfectly
TABLE 1
The size of the thread of the shaft must be within the values listed
below:
hub dia min. th. lenght
mm
63
83
93
116
OK!
NO!
mm (")
18 (3/4)
20 (1)
25 (1)
35 (13/8)
NO!
max. th. lenght
mm (")
25 (1)
27 (11/16)
35 (13/8)
45 (x/x)
Allen key type "A"
(see tab. 3)
max. dia thread
mm
20,00
24,00
31,75
40,00
5