| FASTENER LENGTH | 0.985 INCHES MINIMUM AND 1.031 INCHES MAXIMUM |
| HARDNESS RATING | 80.0 ROCKWELL C MINIMUM FASTENER |
| HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.468 INCHES MAXIMUM |
| HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| LOCKING FEATURE | STRIP OR PELLET OR PATCH THREADS |
| MATERIAL | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP XM-7 OR STEEL COMP 384 FASTENER |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | LEFT-HAND |
| THREAD LENGTH | 0.917 INCHES MINIMUM AND 1.031 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |
| WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |