THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.625 INCHES |
THREAD QUANTITY PER INCH | 18 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.848 INCHES MINIMUM AND |
| 0.898 INCHES MAXIMUM |
FASTENER LENGTH | 3.858 INCHES MINIMUM AND |
| 3.888 INCHES MAXIMUM |
MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP E4340 OR |
| STEEL COMP 6150 OR |
| STEEL COMP 8735 OR |
| STEEL COMP 8740 OVERALL |
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 | CADMIUM 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 |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
HEAD STYLE | DOUBLE HEXAGON W/HOLE |
HEAD HEIGHT | 0.608 INCHES MINIMUM AND |
| 0.628 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.682 INCHES MINIMUM AND |
| 0.691 INCHES MAXIMUM |
EXTENDED WASHER DIAMETER | 1.040 INCHES MINIMUM AND |
| 1.050 INCHES MAXIMUM |
EXTENDED WASHER THICKNESS | 0.140 INCHES MINIMUM AND |
| 0.160 INCHES MAXIMUM |
GRIP LENGTH | 2.990 INCHES MINIMUM AND |
| 3.010 INCHES MAXIMUM |
GRIP DIAMETER | 0.6230 INCHES MINIMUM AND |
| 0.6240 INCHES MAXIMUM |
SPECIFICATION/STANDARD DATA | 80205-NAS630 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |