| CROSS-SECTIONAL SHAPE | HEXAGON |
| LENGTH | 0.327 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 12L14 OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 3.5 MILLIMETERS LEFT INTERNAL (INCLUDES THRU THREAD) |
| SHOULDER LENGTH | 0.267 INCHES NOMINAL |
| SHOULDER WIDTH ACROSS FLATS | 0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| SECOND SHOULDER DIAMETER | 0.183 INCHES MINIMUM AND 0.186 INCHES MAXIMUM |
| SECOND SHOULDER LENGTH | 0.060 INCHES NOMINAL |
| SPECIAL FEATURES | INTERNALLY THREADED HOLE COUNTERBORED 0.157 IN. DIA X 0.079 IN. DEEP |
| WIDTH ACROSS FLATS | 0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| STYLE DESIGNATOR | TWO SHOULDERS LEFT INTERNAL AND RIGHT EXTERNAL THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| THREAD CLASS | 2A RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.236 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD LENGTH | 0.250 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD SERIES DESIGNATOR | M LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| THREAD PITCH IN MILLIMETERS | 0.6 LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD QUANTITY PER INCH | 32 RIGHT EXTERNAL |