| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.094 INCHES NOMINAL |
| FASTENER LENGTH | 2.657 INCHES NOMINAL |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 1.188 INCHES NOMINAL |
| HEAD HEIGHT | 0.281 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-00575,GR8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 146000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| RIB INCLUDED ANGLE | 90.0 DEGREES NOMINAL |
| RIB LENGTH | 0.562 INCHES NOMINAL |
| RIB MAJOR DIAMETER | 0.868 INCHES MINIMUM AND 0.878 INCHES MAXIMUM |
| RIB QUANTITY | 43 |
| SHOULDER DIAMETER | 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 0.875 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| 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 AND ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.313 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 16 |