| FASTENER LENGTH | 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| HEAD HEIGHT | 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM |
| HEAD DIAMETER | 0.782 INCHES MINIMUM AND 0.844 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.186 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| NECK WIDTH | 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 4 GRADE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562 TY2 CL3 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY2 CL3 FED SPEC 2ND TREATMENT RESPONSE OR MIL-C-81562 TY2 CL3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.375 INCHES MINIMUM AND 0.584 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD QUANTITY PER INCH | 16 |