| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.188 INCHES NOMINAL |
| HEAD DIAMETER | 0.213 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| HEAD HEIGHT | 0.45 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | PELLET LOCKING FEATURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731,AMS5732,AMS5737,OR AMS 5853 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, SELF LOCKING, FLAT 100 DEG. HEAD, CRUCIFORM AND OFFSET CRUCIFORM RECESS, FULL THREAD |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.1120 INCHES |
| SPECIFICATION/STANDARD DATA | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700METHOD 1 CLASS 4 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.188 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNJC |