| FASTENER LENGTH | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE DIAMETER | 0.070 INCHES NOMINAL |
| HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE |
| HOLE QUANTITY | 6 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| POINT STYLE | FLAT |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| POINT LENGTH | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| SPECIAL FEATURES | HOLE DRILLED ON LONGITUDINAL AXIS OF HEAD,0.188 IN. DIA,0.185 IN. DEEP,UNTHREADED PORTION EXTERNALLY RELIEVED,0.246 IN. MIN,0.249 IN. MAX 1ST DIA FROM HEAD,0.220 IN. MIN,0.225 IN. MAX 2ND DIA FROM HEAD,1.000 IN. LG FROM LARGEST BEARING SURFACE OF HEAD TO END OF 1ST DIA,2.200 IN. LG FROM LARGEST BEARING SURFACE OF HEAD TO END OF 2ND DIA |
| WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.230 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |