Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASB | FASTENER LENGTH | 36.00 MILLIMETERS MINIMUM AND 37.00 MILLIMETERS MAXIMUM |
| AASL | HEAD DIAMETER | 21.2 MILLIMETERS MINIMUM AND 22.0 MILLIMETERS MAXIMUM |
| CYAU | SCREW MATERIAL | STEEL COMP 4037 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 4341M CODE 20Z24,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| AASU | HEAD HEIGHT | 6.3 MILLIMETERS MINIMUM AND 6.7 MILLIMETERS MAXIMUM |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | M |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| AASA | THREAD LENGTH | 33.2 MILLIMETERS MINIMUM AND 34.8 MILLIMETERS MAXIMUM |
| FEAT | SPECIAL FEATURES | LEAD THREADS HARDENED TO ROCKWELL C 45.0 MIN. FILE TEST PER SAE J-864 |