DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.469 INCHES NOMINAL FIRST HOLE |
FASTENER LENGTH | 1.625 INCHES NOMINAL |
HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.216 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL FIRST HOLE |
SHOULDER DIAMETER | 0.4045 INCHES MINIMUM AND 0.4050 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER LENGTH | 1.078 INCHES NOMINAL FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.529 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.453 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |