| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.9725 INCHES MINIMUM AND 1.0025 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2635 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM |
| GRIP LENGTH | 0.5525 INCHES MINIMUM AND 0.5725 INCHES MAXIMUM |
| HEAD HEIGHT | 0.106 INCHES MAXIMUM |
| HEAD DIAMETER | 0.455 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | HIGH-TORQUE |
| MATERIAL DOCUMENT AND CLASSIFICATION | A286 PER AMS 5853 OR AMS 5737 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEG HEAD,DOVETAIL RECESS,LONG THREAD,CLOSE TOL.,SELF-LOCKING AND NONLOCKING (NOMINAL AND OVERSIZE) |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SPECIAL FEATURES | 450 DEG F MAXIMUM SERVICE TEMPERATURE RATING;BOTTOM SURFACE OF RECESS IS 250 MICROINCHES SURFACE TEXTURE |
| SPECIFICATION/STANDARD DATA | 81205-BACB30LP MANUFACTURERS STANDARD |
| SURFACE FINISH | 32.0 MICROINCHES OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416,TYPE II,CLASS 2 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.425 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |