| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.250 INCHES NOMINAL |
| FASTENER LENGTH | 3.160 INCHES MINIMUM AND 3.250 INCHES MAXIMUM |
| HEAD HEIGHT | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| HEAD DIAMETER | 1.190 INCHES MINIMUM AND 1.310 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.7044 TO 0.7104 INCHES |
| RIB LENGTH | 0.500 INCHES NOMINAL |
| RIB MAJOR DIAMETER | 0.810 INCHES MINIMUM AND 0.820 INCHES MAXIMUM |
| RIB QUANTITY | 36 |
| SHOULDER DIAMETER | 0.783 INCHES MINIMUM AND 0.786 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| SHOULDER LENGTH | 1.280 INCHES MINIMUM AND 1.400 INCHES MAXIMUM FIRST SHOULDER |
| SURFACE TREATMENT | ZINC AND DICHROMATE OVERALL |
| THREAD DIRECTION | LEFT-HAND |
| THREAD LENGTH | 1.600 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNS |
| THREAD QUANTITY PER INCH | 16 |