Overview of cycles | Thread cycles
11.4 Thread cycles
Thread cycles
Overview
Thread cycle: Longitudinal single
or multi-start thread
Taper thread: Tapered single or
multi-start thread
API thread: Single or multi-start
API thread (API: American Petrole-
um Institute)
Regrooving thread: Recut longitu-
dinal single or multi-start thread
Recut tapered thread: Recut
tapered single or multi-start thread
Recut API thread: Recut tapered
single or multi-start thread
Undercut DIN 76: Thread undercut
and thread chamfer
Undercut DIN 509 E: Undercut and
cylinder chamfer
Undercut DIN 509 F: Undercut and
cylinder chamfer
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