| MRC | Criteria | Characteristic |
|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.609 INCHES MINIMUM AND 0.687 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 8.062 INCHES MINIMUM AND 8.109 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| ANEE | GRIP LENGTH | 7.422 INCHES MINIMUM AND 7.453 INCHES MAXIMUM |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 7.859 INCHES MINIMUM FIRST HOLE AND 7.891 INCHES MAXIMUM FIRST HOLE |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 4037 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6758 MIL SPEC 5TH MATE |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
