THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.625 INCHES |
THREAD QUANTITY PER INCH | 18 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.520 INCHES MINIMUM AND |
| 0.560 INCHES MAXIMUM |
FASTENER LENGTH | 4.480 INCHES MINIMUM AND |
| 4.520 INCHES MAXIMUM |
MATERIAL | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.500 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 1.428 INCHES MINIMUM AND |
| 1.440 INCHES MAXIMUM |
SHOULDER SHAPE | ROUND ALL SHOULDERS |
SHOULDER DIAMETER | 0.7463 INCHES MINIMUM AND |
| 0.7475 INCHES MAXIMUM SECOND SHOULDER |
| 0.991 INCHES MINIMUM AND |
| 0.992 INCHES MAXIMUM FOURTH HOLE |
SHOULDER LENGTH | 2.420 INCHES MINIMUM AND |
| 2.440 INCHES MAXIMUM SECOND SHOULDER |
| 1.520 INCHES MINIMUM AND |
| 1.540 INCHES MAXIMUM FOURTH HOLE |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.288 INCHES MINIMUM AND |
| 4.338 INCHES MAXIMUM FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.104 INCHES MINIMUM AND |
| 0.114 INCHES MAXIMUM FIRST HOLE |