Inch 3-piece high strength alloy steel rod ends, metal-to-metal, male, right hand thread
| Requiring maintenance | Maintenance | |
| Alloy steel | Body material | |
| 52100 steel | Ball material | |
| Alloy steel | Race material | |
| Male | Thread gender | |
| Right hand | Thread direction |
| d | 0.25 inch | Bore diameter |
| d2 | 0.75 inch | Head diameter |
| B | 0.375 inch | Ball width |
| G | 37009 | Thread size |
| C1 | 0.281 inch | Head width |
| h | 1.562 inch | Base to Center-Male |
| α° | 16 ° | Misalignment Angle |
| dk | 0.5 inch | Ball diameter |
| l1 | 1 inch | Thread length-Male |
| ≈m | 0.04 lbs | Weight |
| C0 | 5260 lbs | Ultimate radial static load |
| QA1 | SPHERCO | SEALMASTER | AURORA | FK |
| HMR4 | ARE-4 | ARE-4 | AM-4 | JMX4 |