Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND 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. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
CAGE Information
| Code | Company |
|---|---|
| 34855 | LANDERS FRARY AND CLARK |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASA | THREAD LENGTH | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AAWD | SECOND DIAMETER FROM HEAD | 0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.325 INCHES NOMINAL |
| AAWE | THIRD DIAMETER FROM HEAD | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 1212 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.150 INCHES NOMINAL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 2A |
| AASU | HEAD HEIGHT | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| AAWK | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.570 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.940 INCHES MINIMUM AND 1.950 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |