| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 2.250 INCHES NOMINAL |
| HEAD DIAMETER | 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| HEAD HEIGHT | 0.153 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A240/A240M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 410 OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, TAPPING, THREAD FORMING, TYPE AB, FLAT 82 DEGREE COUNTERSUNK HEAD, CROSS-RECESSED |
| SPECIFICATION/STANDARD DATA | NAS-51862 NATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700, METHOD 1, CLASS 4 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |