FASTENER LENGTH | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
HEAD DIAMETER | 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
HEAD HEIGHT | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
HEAD STYLE | PAN |
INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
LOCKING FEATURE | PELLET OR STRIP THREADS |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 9C STYLE |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD LENGTH | 0.210 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNF |