| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| MATT |
MATERIAL |
STEEL COMP 8740 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4037 OVERALL |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| AAUB |
HOLE DIAMETER |
0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| FEAT |
SPECIAL FEATURES |
DRILL CONCENTRIC HOLE IN HEAD 0.188 DIAMETER AND 0.151 MINIMUM AND 0.182 MAX MAXIMUM IN LENGTH |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| CQBC |
MINIMUM TENSILE STRENGTH |
125000 POUNDS PER SQUARE INCH |
| AASK |
HEAD STYLE |
HEXAGON |
| CRHC |
HOLE CONFIGURATION STYLE |
HEXAGON FLATS |
| AATB |
WIDTH BETWEEN FLATS |
0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
3.015 INCHES MINIMUM AND 3.062 INCHES MAXIMUM |
| BQDM |
HOLE TYPE |
DRILLED |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AASA |
THREAD LENGTH |
0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| ASXK |
HOLE QUANTITY |
6 |
| CQFM |
HARDNESS RATING |
26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |