Lowenhertz thread

Lowenhertz thread

[′lō·ən‚hərts ‚thred]
(design engineering)
A screw thread that differs from U.S. Standard form in that the angle between the flanks measured on an axial plane is 53°8′; height equals 0.75 times the pitch, and width of flats at top and bottom equals 0.125 times the pitch.