| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.063 INCHES NOMINAL |
| FASTENER LENGTH | 1.312 INCHES NOMINAL |
| HEAD HEIGHT | 0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| HEAD DIAMETER | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A490 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 110000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| RIB LENGTH | 0.407 INCHES NOMINAL |
| RIB MAJOR DIAMETER | 0.405 INCHES NOMINAL |
| RIB MINOR DIAMETER | 0.062 INCHES NOMINAL |
| RIB QUANTITY | 12 |
| RIB INCLUDED ANGLE | 90.0 DEGREES NOMINAL |
| SHOULDER DIAMETER | 0.360 INCHES MINIMUM AND 0.388 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| SHOULDER LENGTH | 0.905 INCHES NOMINAL FIRST SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ--416,TYPE 2,CALSS 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.885 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |