| FASTENER LENGTH | 1.125 INCHES MINIMUM AND 1.187 INCHES MAXIMUM |
| HEAD HEIGHT | 0.141 INCHES NOMINAL |
| HEAD STYLE | CROWNED HEXAGON |
| LOCKING FEATURE | UNABLE TO DECODE |
| MATERIAL DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| MATERIAL | UNABLE TO DECODE |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,MACHINE,CROWNED HEXAGON HEAD,ADJUSTING |
| SPECIFICATION/STANDARD DATA | 80205-NAS428 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.125 INCHES MINIMUM AND 1.187 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |