| DRIVE TYPE | SOCKET |
| DIAMETER | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| EXTENSION LENGTH | 0.144 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| GRIP LENGTH | 0.291 INCHES MINIMUM AND 0.301 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OVERALL |
| SPECIFICATION/STANDARD DATA | 10001-2558779-2 MANUFACTURERS SPECIFICATION CONTROL |
| TURNLOCK STUD SHANK STYLE | STUD SHANK |
| TURNLOCK STUD HEAD STYLE | FLAT FILLISTER |
| STUD HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| STUD SHANK MAJOR DIAMETER | 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| STUD THREAD SIZE AND SERIES/TYPE DESIGNATOR | 0.250-28 UNF |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |