| FASTENER LENGTH | 2.875 INCHES MINIMUM AND 2.896 INCHES MAXIMUM |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.690 INCHES NOMINAL |
| HEAD STYLE | DOUBLE HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR SPS-M-107,FSCM 50394 MFR REF 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OR STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHOULDER DIAMETER | 1.2475 INCHES MINIMUM AND 1.2490 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER LENGTH | 1.663 INCHES MINIMUM AND 1.673 INCHES MAXIMUM FIRST SHOULDER |
| WIDTH BETWEEN FLATS | 1.801 INCHES MINIMUM AND 1.814 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.000 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UNF |