Tightening Screws - IAI ROBO Cylinder RCS2 Series Operating Manual

7.3

Tightening Screws

 The male screws for mounting the base should be M3 for SA4, M4 for SA5, M5 for SA6/SA7/SS7, and
M8 for SS8. (Use hexagon socket-head bolts).
 For the bolts, we recommend high strength bolts of ISO-10.9 or higher.
 When using a foot base to attach to a mounting table, use the special washer made for high strength
bolts that comes with the actuator if the bolt is M8 or larger. This is unnecessary for M6 or smaller bolts.
Do not use a common spring washer.
 The recommended tighetening torque is given below.
Screw nominal
diameter
When the bolt seating surface is steel When the bolt seating surface is aluminum
M3
M4
M5
M8
16
1.5 Nm (0.15 kgfm)
3.6 Nm (0.38 kgfm)
7.3 Nm (0.77 kgfm)
30.0 Nm (3.19 kgfm)
Tightening Torque
0.8 Nm (0.08 kgfm)
1.8 Nm (0.23 kgfm)
3.4 Nm (0.44 kgfm)
11.5 Nm (1.43 kgfm)