IAI ROBO Cylinder RCS4-WRA12C Instruction Manual page 144

2.3 How to Install
Notice
● Use of high-tension bolts meeting at least ISO 10.9 is recommended.
● Make sure to ensure the same length as the nominal diameter for the effective length of
thread engagement between a screw and a threaded hole when the threaded when the
threaded hole is made of steel and length 1.8 times of the nominal diameter when the
threaded hole is made of aluminum.
2-9