EXTENDED WASHER DIAMETER | 0.460 INCHES MINIMUM AND 0.480 INCHES MAXIMUM |
EXTENDED WASHER THICKNESS | 0.048 INCHES MINIMUM AND 0.058 INCHES MAXIMUM |
FASTENER LENGTH | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM |
HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
HEAD STYLE | DOUBLE HEXAGON W/HOLE |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHOULDER DIAMETER | 0.3466 INCHES MINIMUM AND 0.3476 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 1.285 INCHES MINIMUM AND 1.295 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CHROMIUM OVERALL |
THREAD CLASS | 3A |
THREAD LENGTH | 0.311 INCHES MINIMUM AND 0.361 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNJF |