| FASTENER LENGTH | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 304L OR STEEL COMP 384 OVERALL |
| MINIMUM TENSILE STRENGTH | 11300 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| SURFACE TREATMENT | BLACK CHEMICAL FINISH OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 13 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH BETWEEN FLATS | 0.7360 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM |