Jeep 1997 Grand Cherokee Service Manual page 7

HOW TO DETERMINE BOLT STRENGTH bolt Hexagon head lines Two protruding Two protruding lines bolt Hexagon head No mark Welded bolt hexagon bolt w/washer flange bolt Hexagon
ZG
GENERAL INFORMATION (Continued)
Bolt head No. hexagon bolt w/washer flange bolt Hexagon No mark Grooved lines Four protruding bolt Hexagon head Mark
FASTENER STRENGTH
Class Three protruding lines Stud bolt Hexagon head bolt Mark No mark Class
INTRODUCTION 5