| THREAD SERIES DESIGNATOR | UN |
| NOMINAL THREAD DIAMETER | 1.500 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.850 INCHES NOMINAL |
| FASTENER LENGTH | 4.750 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | C-05-1190,FSCM 36659 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | LCP77-20358 FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 270000 POUNDS PER SQUARE INCH |
| STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| SHOULDER DIAMETER | 1.746 INCHES MINIMUM AND |
| 1.748 INCHES MAXIMUM |
| SHOULDER LENGTH | 3.900 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 1.030 INCHES MINIMUM AND |
| 1.043 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 2.250 INCHES MINIMUM AND |
| 2.282 INCHES MAXIMUM |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.150 INCHES NOMINAL FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.139 INCHES MINIMUM AND |
| 0.145 INCHES MAXIMUM FIRST HOLE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 98897 |
| DESIGN CONTROL REFERENCE | 1285150-103 |