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IN-20
INTRODUCTION - STANDARD BOLT TORQUE SPECIFICATIONS
STANDARD BOLT TORQUE SPECIFICATIONS
IN008-02
HOW TO DETERMINE BOLT STRENGTH
Mark | Class | Mark | Class
Hexagon head bolt
Bolt head No. 4— 4T
5— 5T
6— 6T
7— 7T
8— 8T
9— 9T
10— 10T
11— 11T
Stud bolt
No mark 4T
No mark 4T
Hexagon flange bolt
w/ washer hexagon bolt
No mark 4T
Grooved 6T
Hexagon head bolt
2 protruding lines 5T
Hexagon flange bolt
w/ washer hexagon bolt
2 protruding lines 6T
Welded bolt
Hexagon head bolt
3 protruding lines 7T
4T
Hexagon head bolt
4 protruding lines 8T
V00078