THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.875 INCHES |
THREAD QUANTITY PER INCH | 14 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.850 INCHES MINIMUM AND |
| 0.910 INCHES MAXIMUM |
FASTENER LENGTH | 3.570 INCHES MINIMUM AND |
| 3.590 INCHES MAXIMUM |
MATERIAL | STEEL OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.562 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 1.614 INCHES MINIMUM AND |
| 1.627 INCHES MAXIMUM |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER DIAMETER | 1.123 INCHES MINIMUM AND |
| 1.124 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 3.570 INCHES MINIMUM AND |
| 3.590 INCHES MAXIMUM FIRST SHOULDER |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.210 INCHES NOMINAL FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM FIRST HOLE |
THE MANUFACTURERS DATA | |
MANUFACTURERS CODE | 79RG9 |
DESIGN CONTROL REFERENCE | 160D412053-13 |