| DRIVE TYPE | SLOTTED |
| DIAMETER | 0.500 INCHES NOMINAL |
| EXTENSION LENGTH | 0.250 INCHES NOMINAL |
| GRIP LENGTH | 0.291 INCHES MINIMUM AND 0.360 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 8740 OR STEEL COMP 4140 OVERALL |
| STUD HEAD HEIGHT | 0.560 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 | KNURLED |
| TURNLOCK STUD SHANK STYLE | STUD SHANK |