| DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD | 0.750 INCHES NOMINAL |
| DISTANCE FROM SERRATED PORTION TO NUT END | 1.920 INCHES NOMINAL |
| DISTANCE FROM SERRATED PORTION TO STUD END | 0.750 INCHES NOMINAL |
| OVERALL LENGTH | 2.670 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626, 4140 CHROME MOLY STEEL, HEAT TREAT 16.000-180.000 PSI MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4140 |
| NOMINAL THREAD SIZE | 0.500 INCHES STUD THREAD |
| NOMINAL THREAD SIZE | 0.346 INCHES NUT THREAD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | STUD-KEY LOCKED, LONG STUD LENGTH |
| STYLE DESIGNATOR | LOCKED IN |
| SUPPLEMENTARY FEATURES | LIGHTENING HOLE 0.250 DIA X 0.50 DEEP-ALL INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.750 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.640 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 13 STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD |