INTRODUCTION
Inch Lock Nuts, All Metal (Three optional methods)
20090268
4
Grade Identification
Grade
Corner Marking Method (1)
Flats Marking Method (2)
Clock Marking Method (3)
Grade A
No Notches
No Mark
No Marks
Grade B
One Circumferential Notch
Letter B
Three Marks
Grade C
Two Circumferential Notches
Letter C
Six Marks
47851950 14/05/2015
16
Summary of Contents for 200 Series
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Page 7: ...INTRODUCTION 47851950 14 05 2015 1 Find manuals at https best manuals com ...
Page 12: ...INTRODUCTION Safety rules C227 NA C232 NA L221 NA L228 BT09A213 1 47851950 14 05 2015 6 ...
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