| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THD LG |
| FASTENER LENGTH | 1.170 INCHES MINIMUM AND 1.310 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL |
| HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 74000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE |
| WIDTH BETWEEN FLATS | 0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.000 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 11 |