| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.428 INCHES MINIMUM AND |
| 1.448 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| THREAD LENGTH | 0.760 INCHES MINIMUM AND |
| 0.800 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6304 (UNS K1467) INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL AND |
| CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2416 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 42.0 ROCKWELL C MINIMUM AND |
| 46.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.320 INCHES MINIMUM AND |
| 0.340 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.3125 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND |
| 0.448 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM |
| HAZARDOUS SUBSTANCES | CADMIUM AND |
| NICKEL |
| SPECIFICATION/STANDARD DATA | SAE-AS9209 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | ITEM IS FAA CERTIFIED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, MACHINE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 0U583 |
| DESIGN CONTROL REFERENCE | MS9209-21 |