| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-B-626 1/4 HARD FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-613 1/4 HARD FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-613 1/4 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-W-321 1/4 HARD FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-626 1/4 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-W-321 1/4 HARD FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
COPPER ALLOY 260 OVERALL OR COPPER ALLOY 268 OVERALL OR COPPER ALLOY 270 OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE AND 2S STYLE |
| CTYF |
NONMACHINE NOMINAL THREAD DIAMETER |
0.164 INCHES |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| AASB |
FASTENER LENGTH |
1.454 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| ZZZW |
DEPARTURE FROM CITED DOCUMENT |
AS MODIFIED BY FINISH |
| SFTT |
SURFACE TREATMENT |
CHROMIUM OVERALL |
| AASL |
HEAD DIAMETER |
0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |
| CRSQ |
COUNTERSINK ANGLE |
82.0 DEGREES NOMINAL |
| CRGF |
NONMACHINE THREAD STYLE |
GIMLET POINT (TYPE A, AB OR BA) |