FASTENER LENGTH | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
HEAD HEIGHT | 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
HEAD DIAMETER | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
HEAD STYLE | FLAT CHAMFER |
INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
LOCKING FEATURE | PATCH THREADS |
MATERIAL | IRON ALLOY 660 OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SPECIFICATION/STANDARD DATA | 80205-NAS1743 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 32.0 MICROINCHES THREADS |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.538 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNJF |