| FASTENER LENGTH | 0.158 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| HEAD HEIGHT | 0.086 INCHES NOMINAL |
| HEAD DIAMETER | 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1010 OVERALL |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.212 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.108 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNC |