| EXTENDED WASHER DIAMETER | 1.153 INCHES MINIMUM AND 1.163 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| FASTENER LENGTH | 3.505 INCHES MINIMUM AND 3.535 INCHES MAXIMUM |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM FASTENER |
| HEAD HEIGHT | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.673 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OVERALL |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| SHOULDER DIAMETER | 0.654 INCHES MINIMUM AND 0.655 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TYPE 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.995 INCHES MINIMUM AND 1.045 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 18 |