Case W20F - Page 39

INTRODUCTION
Self-lockingnutsininches,all-metal(threeoptionalmethods)
GradeA
(1)Cornermarkingmethod:Nonotches
(2)Flatsmarkingmethod:Nomarks
(3)Clockmarkingmethod:Nomarks
GradeB
(1)Cornermarkingmethod:Onecircumferentialnotch
(2)Flatsmarkingmethod:LetterB
(3)Clockmarkingmethod:Threemarks
GradeC
(1)Cornermarkingmethod:Twocircumferentialnotches
(2)Flatsmarkingmethod:LetterC
(3)Clockmarkingmethod:Sixmarks
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48096018A18/05/2018
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