| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.385 INCHES MINIMUM AND 1.425 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 1.573 INCHES MINIMUM AND 1.613 INCHES MAXIMUM |
| HEAD DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.067 INCHES MINIMUM AND 0.078 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.281 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 1.208 INCHES MINIMUM AND 1.228 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320-CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE 1,CLASS B FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM OR CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 32 |