| CONCENTRIC HOLE DEPTH | 4.280 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 0.625 INCHES NOMINAL |
| FASTENER LENGTH | 7.060 INCHES NOMINAL |
| HARDNESS RATING | 33.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.380 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| INTERNAL THREAD LENGTH | 1.250 INCHES NOMINAL CONCENTRIC HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-500 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| NOMINAL THREAD SIZE | 0.625 INCHES CONCENTRIC HOLE |
| SHOULDER DIAMETER | 1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM |
| SHOULDER LENGTH | 5.160 INCHES MINIMUM AND 5.220 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 1.380 INCHES NOMINAL |
| STYLE DESIGNATOR | COUNTERBORE THREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F-1024 FSCM 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.733 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD SERIES | UNF CONCENTRIC HOLE |
| THREADS PER INCH | 18 CONCENTRIC HOLE |