| FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL |
| HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 301 OR STEEL COMP 303F OR STEEL COMP 303 OR STEEL COMP 304 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 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 302B OR STEEL COMP 384 OVERALL |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | HEAD PAINTED WHITE FED-STD-595 COLOR NO. 17875 |
| SURFACE FINISH | 63.0 MICROINCHES THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE AND PAINT OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.615 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |
| WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |