| DISTANCE FROM CENTERLINE TO FLAT | 7.72 MILLIMETERS MINIMUM AND 7.84 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 26.42 MILLIMETERS MINIMUM AND 29.92 MILLIMETERS MAXIMUM |
| HEAD DIAMETER | 18.98 MILLIMETERS MINIMUM AND 19.30 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 4.25 MILLIMETERS MINIMUM AND 4.75 MILLIMETERS MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MOD(PE),DTD 5639 MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL | NICKEL ALLOY |
| POINT DIAMETER | 5.35 MILLIMETERS MINIMUM AND 5.85 MILLIMETERS MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SPECIAL FEATURES | SLOT IN POINT FACE 90 DEG TO FLAT ON HEAD 1.02 MM W 1.02 MM DEPTH |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNEF |