| FASTENER LENGTH | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| HARDNESS RATING | 20.0 ROCKWELL C MINIMUM OVERALL AND 26.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| HEAD HEIGHT | 0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| HEAD STYLE | FILLISTER |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | 1035 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR 1038 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL OR STEEL COMP 4037 OVERALL |
| PRIMARY WASHER MATERIAL THICKNESS | 0.012 INCHES MINIMUM AND 0.032 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.372 INCHES MINIMUM AND 0.383 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPRING TENSION |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |