IAI America LSA-W21SS - Manual (Page 25)

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7.3 Tightening Screws
 Use hexagonal socket head bolts (male screws) for installing the base.
 Use of high-tensile bolts of ISO strength category 10.9 or above is recommended.
 Provide the following effective engagement length for the bolt and male screw.
When the male screw is made of steel
 Same as the nominal diameter
When the male screw is made of aluminum
 Twice the nominal diameter
 The recommended tightening torques are as follows.
Tightening torque
Screw nominal
diameter
Steel bolt bearing surface Aluminum bolt bearing surface
M8 31.3 N
m (3.19 kgfm) 14
N
m (1.43 kgfm)
7.4 Installing a Connector Box Using T-slots
T-slots (M4) are provided on the side faces of the actuator for installation of a connector box or other
external equipment.
If you are using a wiring kit, install a connector box using these T-slots.
T-slots can also be used for other purposes, such as installing sensors or securing cables.
The T-slot dimensions are specified below.
 Use of square nuts is recommended in T-slots, but hex nuts can also be used.
 When installing an object using T-slots, select bolts of an appropriate length so that the end of the bolt
will not contact the bottom of the T-slot.