| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM |
| HEAD DIAMETER | 0.617 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
| HEAD HEIGHT | 0.133 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM RIBBED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, MACHINE-FLAT 100 DEGREE HEAD |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | TITANIUM ALLOY |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.242 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |