| FASTENER LENGTH | 0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| HEAD DIAMETER | 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE IA |
| MATERIAL | COPPER ALLOY 360 OVERALL |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.031 INCHES MINIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.195 INCHES MINIMUM AND 0.208 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| SECONDARY WASHER MATERIAL THICKNESS | 0.017 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SECONDARY WASHER STYLE | FLAT |
| SPECIAL FEATURES | ONE WASHER PHOSPHER BRONZE AND ONE WASHER BRASS |
| WASHER QUANTITY | 2 |
| SURFACE TREATMENT | NICKEL OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.555 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD QUANTITY PER INCH | 40 |