STANDARD PARTS 8 900 C0n t W RW I SHOULDERED HEX THREAD UNIT SIZE LENGTH PART NO GRADE PKG 10 32 Is 3948079 1 is 14 2 IB 3754998 2 7 6 14 2 B 3836341 6 I6 14 3 3872781 5 1 14 3 9419713 300 M 5 14 4 Is 399803 300 M 5 9 16 12 4 5116199 300 M 1 9 18 12 4 479352 300 M 1 5 8 11 4 2474301 300 M 1 HEX SOCKET HE D THREAD UNIT SIZE LENGTH PART NO PKG 5 I6 18 5 3983269 300 M 1 16 217911 1 LOCKING INSERT TYPE THREAD UNIT SIZE LENGTH PART NO PKG 8 16 5 I 3905486 16 1 B 3852930 1974 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 24 8 900 8 900 sp 40