INTRODUCTION
Inch Lock Nuts, All Metal (Three optional methods)
20090268
4
Grade Identification Grade Grade A Grade B Grade C
Corner Marking Method (1) No Notches One Circumferential Notch Two Circumferential Notches
Flats Marking Method (2) No Mark Letter B Letter C
84423866 25/07/2011
19
Clock Marking Method (3) No Marks Three Marks Six Marks