STANDARD PARTS 8 903 BOLT ROUND HD SQUARE NECK LOW CROWN MATERIAL GROUP UNIT THREAD SIZE LENGTH PART N0 IDENTIFICATION PRIME USE PKG 10 24 1 1 2 126291 255M 1 4 20 2 1 2 128632 255M 50 1 4 20 3 128640 255M 50 5 16 18 1 2 9436132 255M 3 8 16 1 121807 255M 3 8 16 1 1 4 142414 255M 1 2 13 1 1 2 128237 255M To be ordered from GMT C Warehouse 8 903 BOLT BUTTON HD SHORT SQUARE NECK MATERIAL GROUP UNIT THREAD SIZE LENGTH PART NO IDENTIFICATION PRIME USE PKG 5 16 18 3 4 272964 255M 5 16 18 7 8 9438059 280M 5 16 18 3 1 2 137555 3 8 16 1 4 9437892 280M 3 8 16 1 9437543 28OM 1 3 8 16 10 9440082 255M 1 2 13 1 1 2 9437273 28OM 1 2 13 2 1 2 354259 260M To be ordered from GMT C Warehouse 8 903 BOLT RD HD RIBBED NECK MATERIAL GROUP UNIT THREAD SIZE LENGTH PART NO IDENTIFICATION PRIME USE PKG 1 37 33 255 H WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION 89 142