Canon 2/3 Hole Puncher Unit-A1 Service Manual page 9

The recommended torque value is shown below as a reference value.
Fastened member Metal
Tightening M4 Approx. 1.6 Approx. 1.6 Approx. 1.6 Approx. 0.8 Approx. 1.6 Approx. 0.8 Approx. 1.6 Approx. 0.8
torque
M3 Approx. 0.8 Approx. 0.8 Approx. 0.6 Approx. 0.6 Approx. 0.6 Approx. 0.6 Approx. 0.6 Approx. 0.6
(N*m)
* For PCB, refer to the tightening torque value of resin (fastened member).
RS tight
Resin Metal
RS tight W Sems
Type of Screws
W Sems
Resin Metal
Type of Screws
Binding
3
Safety Precautions
Binding
Resin Metal
TP
TP
Resin