| FASTENER LENGTH | 3.745 INCHES MINIMUM AND 3.745 INCHES MINIMUM AND 3.755 INCHES MAXIMUM3.755 INCHES MAXIMUM |
| HEAD DIAMETER | 0.563 INCHES NOMINAL0.563 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL |
| HEAD STYLE | KNURLED NO. 1KNURLED NO. 1 |
| INTERNAL DRIVE STYLE | HEXAGONHEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SHOULDERBOLT, SHOULDER |
| MATERIAL | STEEL OVERALLSTEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES0.375 INCHES |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 1818 |
| WIDTH ACROSS FLATS | 0.0188 INCHES NOMINAL0.0188 INCHES NOMINAL |
| THREAD CLASS | 3A3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL |