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 |
|---|---|
| 39428 | MCMASTER-CARR SUPPLY COMPANY |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CRSQ | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLAT HEAD MACHINE SCREW |
| AGAV | END ITEM IDENTIFICATION | 5840-01-578-1768 RADAR SET |
| AHYM | NOMINAL THREAD DIAMETER | 4.0 MILLIMETERS |
| AASB | FASTENER LENGTH | 20.0 MILLIMETERS NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE II |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| CQFM | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 6G |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.7 |
| CQBC | MINIMUM TENSILE STRENGTH | 72000 POUNDS PER SQUARE INCH |
| AASL | HEAD DIAMETER | 7.5 MILLIMETERS NOMINAL |
| AASA | THREAD LENGTH | 17.8 MILLIMETERS NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | M |
| CYAU | SCREW MATERIAL | STEEL CORROSION RESISTING |