| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TYPE II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| FEAT |
SPECIAL FEATURES |
THREAD SHALL EXTEND TO WITHIN 2 PITCHES OF THE HEAD OR BE 1.000 INCHES MINIMUM, WHICHEVER IS SHORTER. CONTAINS LOCKWIRE HOLE, 0.047 INCHES DIAMETER. |
| AASK |
HEAD STYLE |
FILLISTER |
| AASL |
HEAD DIAMETER |
0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNRF |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
SCREW, CAP, SOCKETHEAD .250-28 UNRF |
| AASU |
HEAD HEIGHT |
0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
1.000 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AASB |
FASTENER LENGTH |
0.744 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| ASDB |
WIDTH ACROSS FLATS |
0.187 INCHES NOMINAL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |