| THREAD CLASS | 3A |
| THREAD LENGTH | 1.776 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |
| FASTENER LENGTH | 1.724 INCHES MINIMUM AND 1.776 INCHES MAXIMUM |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM OVERALL AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL |
| POINT STYLE | OVAL |
| WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |