Toyota Land Cruiser 1988 Repair Manual page 351

B-2
STANDARD BOLT TORQUE SPECIFICATIONS
STANDARD BOLT TORQUE SPECIFICATIONS
HOW TO DETERMINE BOLT STRENGTH
Mark Class
Mark Class
Hexagon
Bolt
4 - 4T
Stud bolt
head bolt
~head
No.5-
5T No mark
6-
6T
7- 7T
4T
0
No mark
4T
Hexagon
0
flange bolt
Grooved
w/washer
No mark 4T
hexagon bolt
6T
Hexagon
0
head bolt
Two
protruding
5T
lines
Hexagon
0
Welded bolt
flange bolt
Two
w/washer
protruding 6T
hexagon bolt
lines
4T
Hexagon
head bolt
0
Three
protruding
7T
lines