| FASTENER LENGTH | 19.84 MILLIMETERS MINIMUM AND 20.62 MILLIMETERS MAXIMUM |
| HEAD DIAMETER | 8.97 MILLIMETERS MINIMUM AND 9.47 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 2.59 MILLIMETERS MINIMUM AND 2.79 MILLIMETERS MAXIMUM |
| HEAD STYLE | PAN |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BS3111 GRADE 394S17 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR BS970 GRADE EN58E NATIONAL STD/SPEC 2ND MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL |
| SPECIAL FEATURES | TORX DRIVE |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 19.84 MILLIMETERS MINIMUM AND 20.62 MILLIMETERS MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |