FASTENER LENGTH | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM |
HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
NONSTANDARD THREAD PITCH DIAMETER | +0.2216 TO 0.2238 INCHES |
SHOULDER DIAMETER | 0.3600 INCHES MINIMUM AND 0.3620 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.103 INCHES MINIMUM AND 0.107 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.431 INCHES MINIMUM AND 0.435 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNF |