| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.093 INCHES NOMINAL FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.074 INCHES MINIMUM AND 0.079 INCHES MAXIMUM FIRST HOLE |
| HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 1.250 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4150 |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 5A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.375 INCHES MINIMUM STUD THREAD |
| THREAD LENGTH | 0.687 INCHES MINIMUM NUT THREAD |
| THREAD PITCH DIAMETERS | +0.2800 TO 0.2808 INCHES STUD THREAD |
| THREAD QUANTITY PER INCH | 18 STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |