| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 8740 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND C MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-C-6049 COND C MIL SPEC 2ND MATERIAL RESPONSE OR |
| AMS 6382 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 6322 ASSN STD 1ST MATERIAL RESPONSE |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| OVERALL LENGTH | 1.677 INCHES MINIMUM AND |
| 1.697 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| UNS STUD THREAD |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| 0.250 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| 20 STUD THREAD |
| THREAD PITCH DIAMETERS | 0.2218 TO 0.2233 INCHES STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.813 INCHES MINIMUM AND |
| 0.884 INCHES MAXIMUM NUT THREAD |
| 0.688 INCHES MINIMUM AND |
| 0.788 INCHES MAXIMUM STUD THREAD |
| FEATURES PROVIDED | CASEHARDENED |
| SPECIAL FEATURES | 160000 PSI MIN TENSILE |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 43.0 ROCKWELL C MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD |
| 63.0 MICROINCHES SHANK |
| 32.0 MICROINCHES STUD THD |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 99167 |
| DESIGN CONTROL REFERENCE | 27636-11 |