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 |
|---|---|
| 80204 | AMERICAN NATIONAL STANDARDS INSTITUT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 0.152 INCHES MINIMUM AND 0.165 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.750 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| CYAU | SCREW MATERIAL | STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 304L |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| AASK | HEAD STYLE | BINDING |
| AASA | THREAD LENGTH | 0.650 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 8S STYLE |
| AASL | HEAD DIAMETER | 0.498 INCHES MINIMUM AND 0.525 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| CMLP | THREAD QUANTITY PER INCH | 20 |