| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.063 INCHES MINIMUM FIRST HOLE AND 3.073 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 3.180 INCHES NOMINAL |
| HEAD HEIGHT | 0.125 INCHES NOMINAL |
| HEAD DIAMETER | 0.500 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 630 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES MINIMUM FIRST HOLE AND 0.075 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.3111 INCHES MINIMUM FOURTH HOLE AND 0.3120 INCHES MAXIMUM FOURTH HOLE |
| SHOULDER DIAMETER | 0.2486 INCHES MINIMUM SECOND SHOULDER AND 0.2495 INCHES MAXIMUM SECOND SHOULDER |
| SHOULDER LENGTH | 2.275 INCHES MINIMUM FOURTH HOLE AND 2.285 INCHES MAXIMUM FOURTH HOLE |
| SHOULDER LENGTH | 0.565 INCHES NOMINAL SECOND SHOULDER |
| SHOULDER SHAPE | ROUND SECOND SHOULDER |
| SHOULDER SHAPE | ROUND FOURTH HOLE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PS100,2S(PS923) FSCM K0654 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.330 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |