| DRIVE END OUTSIDE DIAMETER | 17.9 MILLIMETERS NOMINAL |
| DRIVE SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 110.0 MILLIMETERS NOMINAL |
| MATERIAL | STEEL OVERALL |
| WRENCHING END OPENING DEPTH | 14.0 MILLIMETERS MINIMUM AND 15.0 MILLIMETERS MAXIMUM |
| WRENCHING END OUTSIDE DIAMETER | 13.75 MILLIMETERS NOMINAL |
| WRENCHING SURFACE SHAPE | SQUARE SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 8.1 MILLIMETERS MINIMUM AND 8.35 MILLIMETERS MAXIMUM SINGLE END |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| TORQUE CAPACITY | 19.0 METER-KILOGRAMS MINIMUM AND 21.0 METER-KILOGRAMS MAXIMUM |