threadedly
threaded-tight
threaded-wheel
threader
thread-generating
thread-grinding
threadmill
thread-milling
thread-producing
thread-rolling
  thread-space
thread-tapping
thread-turning
thread-type
thread-whirling
threat
three
three-angular
three-arm
three-axis
three-axis-controlled

    thread-space convolute worm

    червяк с прямолинейным профилем впадины