| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY LOCKING FEATURE |
| FASTENER LENGTH | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| LOCKING FEATURE | PELLET THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493 ASSN STD ALL MATERIAL RESPONSES FASTENER |
| MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 FASTENER |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 6 TYPE |
| WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.788 INCHES MINIMUM AND 0.891 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |