| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.015 INCHES MAXIMUM |
| FASTENER LENGTH | 0.280 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| HEAD HEIGHT | 0.030 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| HEAD DIAMETER | 0.188 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | COPPER ALLOY 342 OR COPPER ALLOY 353 OVERALL |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| RIB LENGTH | 0.030 INCHES MINIMUM AND 0.075 INCHES MAXIMUM |
| RIB MAJOR DIAMETER | 0.130 INCHES MINIMUM AND 0.134 INCHES MAXIMUM |
| RIB QUANTITY | 50 |
| SHOULDER DIAMETER | 0.130 INCHES MINIMUM AND 0.134 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 0.030 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| SPECIAL FEATURES | STRAIGHT KNURL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F-207 FSCM 80009 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | COPPER AND TIN AND ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.175 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNC |