| FASTENER LENGTH | 2.250 INCHES NOMINAL |
| HEAD HEIGHT | 0.500 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890 AL-2 MIL SPEC 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OR STEEL COMP 4140 OVERALL |
| MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 105000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| SHOULDER DIAMETER | 0.906 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 1.000 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SPECIAL FEATURES | UNDERCUT BETWEEN HEAD AND SHOULDER 0.750 IN. DIA BY 0.125 IN. W,THREAD RELIEF 0.609 IN. DIA BY 0.125 IN. W |
| WIDTH BETWEEN FLATS | 1.125 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.000 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 10 |