| CROSS-SECTIONAL SHAPE | ROUND |
| DIAMETER | 0.620 INCHES NOMINAL |
| LEFT PROJECTION DIAMETER | 0.241 INCHES MINIMUM |
| LEFT PROJECTION LENGTH | 0.340 INCHES NOMINAL |
| LENGTH | 4.150 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA581 300 SERIES ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES LEFT EXTERNAL |
| RIGHT PROJECTION DIAMETER | 0.211 INCHES MINIMUM AND 0.216 INCHES MAXIMUM |
| RIGHT PROJECTION LENGTH | 0.150 INCHES NOMINAL |
| STYLE DESIGNATOR | PROJECTION BOTH ENDS |
| THREAD CLASS | 1A RIGHT EXTERNAL |
| THREAD CLASS | 2A LEFT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.100 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD LENGTH | 0.340 INCHES NOMINAL LEFT EXTERNAL |
| THREAD PITCH DIAMETERS | +0.1919 TO 0.1957 INCHES RIGHT EXTERNAL |
| THREAD PITCH DIAMETERS | +0.2127 TO 0.2164 INCHES LEFT EXTERNAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) LEFT EXTERNAL |
| THREAD QUANTITY PER INCH | 20 LEFT EXTERNAL |
| THREAD QUANTITY PER INCH | 32 RIGHT EXTERNAL |