| FASTENER LENGTH | 0.8750 INCHES NOMINAL |
| HEAD DIAMETER | 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A307 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| NECK WIDTH | 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416TYPE2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562TY2 CL3 MIL SPEC 1ST TREATMENT RESPONSE OR ASTM B633 ASSN STD 2ND TREATMENT RESPONSE OR MIL-C-81562 TY+2 CLS MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 5.900 INCHES MINIMUM AND 6.062 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |