| FASTENER LENGTH | 2.250 INCHES MINIMUM AND 2.270 INCHES MAXIMUM |
| GRIP LENGTH | 1.630 INCHES MAXIMUM |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.093 INCHES MINIMUM AND 0.105 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| HEAD MAJOR DIAMETER | 0.641 INCHES MINIMUM AND 0.676 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 64867 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OVERALL |
| NOMINAL THREAD SIZE | 0.438 INCHES |
| SHANK DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 125000 SINGLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.1895 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |