| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.350 INCHES NOMINAL |
| FASTENER LENGTH | 1.365 INCHES MINIMUM AND |
| 1.385 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 301 OR |
| STEEL COMP 302 OR |
| STEEL COMP 302B OR |
| STEEL COMP 303 OR |
| STEEL COMP 303SE OR |
| STEEL COMP 304 OR |
| STEEL COMP 304L OR |
| STEEL COMP 305 OR |
| STEEL COMP 308 OR |
| STEEL COMP 309 OR |
| STEEL COMP 309S OR |
| STEEL COMP 310 OR |
| STEEL COMP 310S OR |
| STEEL COMP 314 OR |
| STEEL COMP 316 OR |
| STEEL COMP 316L OR |
| STEEL COMP 317 OR |
| STEEL COMP 321 OR |
| STEEL COMP 347 OR |
| STEEL COMP 348 OR |
| STEEL COMP 384 OR |
| STEEL COMP 385 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | CROWNED HEXAGON |
| HEAD HEIGHT | 0.365 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| ROUND THIRD SHOULDER |
| ROUND SECOND SHOULDER |
| SHOULDER DIAMETER | 0.112 INCHES NOMINAL FIRST SHOULDER |
| 0.112 INCHES NOMINAL THIRD SHOULDER |
| 0.164 INCHES NOMINAL SECOND SHOULDER |
| SHOULDER LENGTH | 0.365 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM FIRST SHOULDER |
| 0.380 INCHES MINIMUM AND |
| 0.420 INCHES MAXIMUM THIRD SHOULDER |
| 0.250 INCHES NOMINAL SECOND SHOULDER |
| SPECIAL FEATURES | SECOND SHOULDER FULLY THREADED .164-32UNC-2A |