| BEARING SURFACE OF HEAD SURFACE FINISH | 32.0 MICROINCHES |
| FASTENER LENGTH | 0.7605 INCHES MINIMUM AND 0.7905 INCHES MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| HEAD DIAMETER | 0.308 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | TORQUE-SET RIBBED |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| SCREW MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| SHANK SURFACE FINISH | 32.0 MICROINCHES |
| THREAD LENGTH | 0.338 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJC |
| THREAD SURFACE FINISH | 32.0 MICROINCHES |