| MATERIAL | STEEL COMP 4130 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 8630 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6050 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| CROSS-SECTIONAL SHAPE | HEXAGON |
| WIDTH ACROSS FLATS | 0.304 INCHES MINIMUM AND |
| 0.316 INCHES MAXIMUM |
| STYLE DESIGNATOR | TWO SHOULDERS LEFT INTERNAL AND RIGHT EXTERNAL THREADS |
| SHOULDER WIDTH ACROSS FLATS | 0.304 INCHES MINIMUM AND |
| 0.316 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.125 INCHES NOMINAL |
| SECOND SHOULDER DIAMETER | 0.347 INCHES NOMINAL |
| SECOND SHOULDER LENGTH | 0.080 INCHES NOMINAL |
| LENGTH | 2.000 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJC LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNJC RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.1640 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.1640 INCHES RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 32 RIGHT EXTERNAL |
| THREAD CLASS | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| 3A RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.438 INCHES NOMINAL RIGHT EXTERNAL |