| FASTENER LENGTH | 0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM |
| HEAD DIAMETER | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD HEIGHT | 0.057 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | COPPER ALLOY FASTENER |
| MATERIAL | COPPER ALLOY PRIMARY WASHER |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.031 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ESF+5,FSCM 24655 MFR REF SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ESF+5,FSCM 24655 MFR REF SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| SURFACE TREATMENT | NICKEL FASTENER |
| SURFACE TREATMENT | NICKEL PRIMARY WASHER |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.250 INCHES MINIMUM AND 0.343 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UNC |