| MRC |
Requirement Statement |
Characteristics |
| AATC |
EXTENDED WASHER DIAMETER |
0.624 INCHES MINIMUM AND 0.676 INCHES MAXIMUM |
| AATD |
EXTENDED WASHER THICKNESS |
0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.750 INCHES NOMINAL |
| CBBL |
FEATURES PROVIDED |
CASEHARDENED |
| CQFM |
HARDNESS RATING |
45.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.264 INCHES NOMINAL |
| AASK |
HEAD STYLE |
HEXAGON EXTENDED WASHER |
| MATT |
MATERIAL |
STEEL COMP 1020 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL OR STEEL COMP 1023 OVERALL OR STEEL COMP 1524 OVERALL |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
F TYPE |
| CTYF |
NONMACHINE NOMINAL THREAD DIAMETER |
0.312 INCHES |
| CRGF |
NONMACHINE THREAD STYLE |
DOUBLE FLUTE (TYPE F) |
| ABQZ |
INTERNAL DRIVE STYLE |
W/O INTERNAL DRIVE |
| AATB |
WIDTH BETWEEN FLATS |
0.500 INCHES NOMINAL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL AND CHROMATE OVERALL |
