| FASTENER LENGTH | 0.408 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| POINT DIAMETER | 0.166 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| POINT LENGTH | 0.128 INCHES MINIMUM AND 0.142 INCHES MAXIMUM |
| POINT STYLE | DOG |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |
| WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| THREAD LENGTH | 0.199 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |