| FASTENER LENGTH | 1.362 INCHES MINIMUM AND 1.392 INCHES MAXIMUM |
| GRIP LENGTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| HARDNESS RATING | 51.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| HEAD MAJOR DIAMETER | 0.387 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 15300 DOUBLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2417 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | NICKEL AND ZINC OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |