| FIRST END STYLE | SQUARE |
| FIRST STEP DIAMETER | 39.96 MILLIMETERS NOMINAL |
| FIRST STEP LENGTH | 43.80 MILLIMETERS NOMINAL |
| HEAD STYLE | FLAT |
| HEIGHT | 5.70 MILLIMETERS NOMINAL |
| PIN HEAD DIAMETER | 54.00 MILLIMETERS NOMINAL |
| SECOND STEP DIAMETER | 33.87 MILLIMETERS NOMINAL |
| SECOND STEP LENGTH | 73.20 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | 0.4 MICRONS SHOULDER,3.2 MICRONS 2ND SHOULDER;M24 THD ON 3RD SHOULDER;2 HOLES 6.50 MM DIA BY 10.00 MM DEEP THROUGH HD |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SHERARDIZED BSI BS 4921-CLASS 1 NATIONAL STD/SPEC 1ST TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC AND PASSIVATE OVERALL |
| THIRD STEP DIAMETER | 24.00 MILLIMETERS NOMINAL |
| THIRD STEP LENGTH | 32.30 MILLIMETERS NOMINAL |
| UNDER HEAD LENGTH | 149.30 MILLIMETERS NOMINAL |