| THREAD SERIES DESIGNATOR | UNRF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.167 INCHES MINIMUM AND |
| 1.250 INCHES MAXIMUM |
| FASTENER LENGTH | 1.250 INCHES NOMINAL |
| MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| STEEL FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493 ASSN STD ALL MATERIAL RESPONSES FASTENER |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM FASTENER |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT CHAMFER |
| HEAD DIAMETER | 0.550 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| HEAD HEIGHT | 0.430 INCHES MINIMUM AND |
| 0.437 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.375 INCHES MINIMUM AND |
| 0.379 INCHES MAXIMUM |
| LOCKING FEATURE | STRIP THREADS |
| HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 6 |
| HOLE DIAMETER | 0.061 INCHES MINIMUM AND |
| 0.067 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |