| DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD | 0.140 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO NUT END | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO STUD END | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM |
| LOCKING FEATURE | RING, LOCK SERRATED |
| OVERALL LENGTH | 1.280 INCHES MINIMUM AND 1.340 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| SERRATION INCLUDED ANGLE | 86.0 DEGREES NOMINAL |
| SERRATION QUANTITY | 17 |
| STYLE DESIGNATOR | LOCKED IN |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.375 INCHES MINIMUM AND 0.405 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM NUT THREAD |
| THREAD PITCH DIAMETERS | +0.2778 TO 0.2795 INCHES STUD THREAD |
| THREAD QUANTITY PER INCH | 18 STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |