| DRIVE TYPE | SOCKET |
| EXTENDED WASHER DIAMETER | 0.552 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
| EXTENSION LENGTH | 0.300 INCHES NOMINAL |
| GRIP LENGTH | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| MATERIAL ACCOMMODATED THICKNESS | 0.571 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| SECURING DEVICE TYPE | RING |
| WIDTH ACROSS FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
| STUD HEAD HEIGHT | 0.300 INCHES NOMINAL |
| STUD SHANK MAJOR DIAMETER | 0.3730 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| STUD THREAD SIZE AND SERIES/TYPE DESIGNATOR | 0.250-28 UNF |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| TURNLOCK STUD HEAD STYLE | STUD HEAD |
| TURNLOCK STUD SHANK STYLE | STUD SHANK |