| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.470 INCHES MINIMUM AND |
| 1.530 INCHES MAXIMUM |
| FASTENER LENGTH | 1.470 INCHES MINIMUM AND |
| 1.530 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 8640 OR |
| STEEL COMP 8740 OR |
| STEEL COMP 4140 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM OR |
| ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR |
| QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND |
| 38.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.248 INCHES MINIMUM AND |
| 0.252 INCHES MAXIMUM |
| LOCKING FEATURE | DISTORTIONS THREADS |
| POINT STYLE | OVAL |
| SPECIAL FEATURES | LOCKING ELEMENT CRES COMP 302 NON-MAGNETIC MATL |