| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.580 INCHES MINIMUM AND |
| 0.620 INCHES MAXIMUM |
| FASTENER LENGTH | 3.240 INCHES MINIMUM AND |
| 3.260 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 301 OR |
| STEEL COMP 302 OR |
| STEEL COMP 304 OR |
| STEEL COMP 304L OR |
| STEEL COMP 316L OR |
| STEEL COMP 321 OR |
| STEEL COMP 323 OR |
| STEEL COMP 347 OR |
| STEEL COMP 348 SECONDARY WASHER |
| STEEL COMP 301 OR |
| STEEL COMP 302B OR |
| STEEL COMP 303 OR |
| STEEL COMP 303SE 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 317 OR |
| STEEL COMP 348 OR |
| STEEL COMP 384 OR |
| STEEL COMP 385 PRIMARY WASHER |
| ALUMINUM ALLOY 6061 STAND-OFF |
| STEEL COMP 305 OR |
| STEEL COMP 316 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC ALL MATERIAL RESPONSES SECONDARY WASHER |
| 66 FED STD ALL MATERIAL RESPONSES PRIMARY WASHER |
| QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| 66 FED STD ALL MATERIAL RESPONSES FASTENER |
| SURFACE TREATMENT | OXIDE SECONDARY WASHER |
| PASSIVATE PRIMARY WASHER |
| PAINT STAND-OFF |
| OXIDE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| 595 NO 37038 FED STD SINGLE TREATMENT RESPONSE STAND-OFF |
| MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| HEAD STYLE | FLAT CHAMFER |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.187 INCHES NOMINAL |
| MATERIAL ACCOMMODATED THICKNESS | 0.095 INCHES MINIMUM AND |
| 0.105 INCHES MAXIMUM |
| SPECIAL FEATURES | COLOR BLACK |