| FASTENER LENGTH | 2.250 INCHES MINIMUM AND 2.313 INCHES MAXIMUM | 
| FEATURES PROVIDED | FINISHED HEAD | 
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM | 
| HEAD STYLE | HEXAGON | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC ALL MATERIAL RESPONSES OVERALL | 
| MATERIAL | COPPER ALLOY 462  OR COPPER ALLOY 464  OR COPPER ALLOY 482  OR COPPER ALLOY 485 OVERALL | 
| NOMINAL THREAD DIAMETER | 0.250 INCHES | 
| SPECIFICATION/STANDARD DATA | 80205-NAS467 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2408 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | TIN OVERALL | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 2.179 INCHES MINIMUM AND 2.313 INCHES MAXIMUM | 
| THREAD QUANTITY PER INCH | 28 | 
| THREAD SERIES DESIGNATOR | UNF | 
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |