EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
FASTENER LENGTH | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
HARDNESS RATING | 32.0 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 EXTENDED WASHER |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 601 OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHOULDER DIAMETER | 0.281 INCHES MINIMUM AND 0.282 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2403 ASSN STD SINGLE TREATMENT RESPONSE OR AMS 2304 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | NICKEL OVERALL |
THREAD CLASS | 1A |
THREAD LENGTH | 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNF |
WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |