| MATERIAL DOCUMENT AND CLASSIFICATION | BS HR650 NATIONAL SPEC 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL CORROSION RESISTING OR IRON ALLOY 660 |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| NOMINAL THREAD SIZE | 0.190 INCHES NUT THREAD |
| OVERALL LENGTH | 32.2 MILLIMETERS NOMINAL |
| SHANK DIAMETER | 4.73 MILLIMETERS MINIMUM AND 4.82 MILLIMETERS MAXIMUM |
| STYLE DESIGNATOR | STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 1000-SC-00098,FSCM K2523 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 10.0 MILLIMETERS MINIMUM STUD THREAD AND 12.5 MILLIMETERS MAXIMUM STUD THREAD |
| THREAD LENGTH | 10.5 MILLIMETERS MINIMUM NUT THREAD |
| THREAD PITCH DIAMETERS | +0.2167/+0.2195 INCHES STUD THREAD |
| THREAD QUANTITY PER INCH | 20 STUD THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNJF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNJS STUD THREAD |