| MRC | Criteria | Characteristic |
|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.750 INCHES MINIMUM AND 0.829 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.328 INCHES MINIMUM AND 2.375 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.070 INCHES NOMINAL |
| AAUR | GRIP DIAMETER | 0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| ANEE | GRIP LENGTH | 1.546 INCHES MINIMUM AND 1.578 INCHES MAXIMUM |
| ASXK | HOLE QUANTITY | 1 |
| BQDM | HOLE TYPE | DRILLED |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 125 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CRHC | HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.155 INCHES MINIMUM FIRST HOLE AND 2.187 INCHES MAXIMUM FIRST HOLE |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES GRIP |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR AMS 6300 ASSN STD 4TH MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 5TH MATERI |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
