STANDARD PARTS SECTION III STANDARD PARTS Cont d GROUP 8 900 BOLTS Cont d PAGE Locking Insert Plug Type 138 Hex Socket Head 138 Hex Socket Head w Locking Insert 138 Hex with Outside Tooth Lockwasher 139 Hex with Inside Lockwasher 139 Hex with Spring Lockwasher 139 Hex with Plain Lockwasher 140 Hex Washer Head Slotted 140 Special Type C Type A Twelve Point 140 Special Fluted Shoulder Hex Head 141 Hex Pilot Point 141 Connecting Rod 141 GROUP 8 903 BOLTS Round Head Square Neck Low Crown 142 Button Head Short Square Neck 142 Rd Hd Ribbed Neck 142 Round Head Square Neck 143 GROUP 8 906 SCREWS Machine Round Head Slotted Machine 144 Round Head Cross Recess 144 Special Rd Hd Cross Recess Washer Face Machine 145 GROUP 8 907 SCREWS Fillister Head Machine 145 Headlamp Aiming 145 Pan Head Slotted Machine External Lockwasher 146 GROUP 8 908 SCREWS Serrated Flat Hd Countersunk Machine 146 Flat Head Slotted 147 Flat Head Cross Recess Machine Torx Machine 147 Flat Head with Countersunk Tooth Lockwasher 147 Special Hex Socket Flat Head 148 GROUP 8 909 SCREWS Oval Head Slotted Machine 148 Oval Head Machine 149 Oval Head Cross Recess with External Tooth Lockwasher Machine 150 GROUP 8 913 SCREWS Truss Head Slotted 150 Truss Head Cross Recess 151 Pan Head Slotted Machine 151 Pan Head Machine 152 Pan Head Cross Recess with External or Internal Lockwasher 153 Pan Head with Conical Spring Washer 153 Special Pan Head Cross Recess Machine 153 GROUP 8 914 INSERTS Threaded 154 GROUP 8 915 NUTS Hexagon 155 Wheel 156 Hexagon Conical Washer 156 GROUP 8 917 NUTS Hexagon Slotted 157 External Tooth Lockwasher Hexagon Asm 158 Prevailing Torque Tension Hex Lock 158 Special Bearing Locknut 159 Type A Washer Insert Hex Machine Screw Lock 159 Hex Jam Lock Type EC 159 Hex Flange 160 Serrated Hexagon Lock 160 GROUP 8 919 NUTS Low and High Crown Acorn Type 160 Acorn Self Sealing 161 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION 89 2