| EXTENDED WASHER DIAMETER | 0.290 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM |
| FASTENER LENGTH | 0.602 INCHES MINIMUM AND 0.622 INCHES MAXIMUM |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.197 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| HEAD HEIGHT | 0.097 INCHES MINIMUM AND 0.109 INCHES MAXIMUM |
| HEAD STYLE | ROUND EXTENDED WASHER |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.125 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.290 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 20 FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.560 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |