THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.562 INCHES |
THREAD QUANTITY PER INCH | 18 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.800 INCHES MINIMUM AND |
| 0.850 INCHES MAXIMUM |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND |
| 43.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | DOUBLE HEXAGON W/HOLE |
HEAD HEIGHT | 0.547 INCHES MINIMUM AND |
| 0.567 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.619 INCHES MINIMUM AND |
| 0.628 INCHES MAXIMUM |
EXTENDED WASHER DIAMETER | 0.928 INCHES MINIMUM AND |
| 0.938 INCHES MAXIMUM |
EXTENDED WASHER THICKNESS | 0.123 INCHES MINIMUM AND |
| 0.143 INCHES MAXIMUM |
HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS |
HOLE TYPE | DRILLED |
HOLE QUANTITY | 4 |
HOLE DIAMETER | 0.055 INCHES NOMINAL |
GRIP LENGTH | 3.740 INCHES MINIMUM AND |
| 3.760 INCHES MAXIMUM |
SPECIFICATION/STANDARD DATA | 80205-NAS629 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |