Female rod end bearings have threads inside. Male rod end bearings have threads on the outside. This difference changes how each bearing attaches to machines. Gonuo has more than 20 years of experience. They offer many kinds of rod end bearings for different industries. The way the threads face affects how fast you can install them. It also changes how much space you need and how well... https://www.gonuobearing.com/Female-vs-male-rod-end-bearings-key-differences-and-applications.html