| COUNTERSINK ANGLE | 82.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.705 INCHES MINIMUM AND 0.735 INCHES MAXIMUM |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM FASTENER AND 40.0 ROCKWELL C MAXIMUM FASTENER |
| HEAD DIAMETER | 0.685 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | TORX |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 GRADE 5.1 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE SB-9158 ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| MATERIAL | RUBBER NATURAL PRIMARY WASHER |
| MATERIAL | STEEL FASTENER |
| PRIMARY WASHER MATERIAL THICKNESS | 0.060 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.500 INCHES NOMINAL |
| PRIMARY WASHER STYLE | FLAT |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | HALF DOG POINT 0.309 IN. MIN 0.313 IN. MAX DIA; LENGTH OF POINT 0.060 IN. MIN 0.070 IN. MAX |
| SPLINE MAJOR DIAMETER | 0.266 INCHES NOMINAL |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | DICHROMATE ZINC FASTENER |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.362 INCHES MINIMUM AND 0.485 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |