What is left-hand thread and reverse thread?

What is the difference between a right-hand thread and a left-hand thread?

Right-hand thread, regular thread
⇒This shape is used to turn the coupling to the right when screwing it in.
All regular products are right-hand threads unless otherwise stated.

Left-hand thread, reverse thread
⇒Threads that are turned to the left when screwing in a coupling.
Since this is a special screw, it is always marked as left-hand thread/reverse thread, etc.

Where are left-hand threads used?

★Fans, wheels★
Screws in the opposite direction of normal rotation are used to prevent disengagement.

★The direction of rotation of the gas cylinder screw depends on the type of gas★
When flammable gases are contained, the screw is left-handed. However, for ammonia, the screw is right-handed, and for helium gas, left-handed.For gases that pose an explosion hazard, left-hand threads are used to prevent accidental connection.

stocks conversion fittings with left-hand threads!

we are able to provide a stable supply of products under gauge control. In addition, female male sockets are in stock.
Female male socket Left-hand thread x right-hand thread (PT x PT) High pressure typeFemale male socket Right-hand thread x left-hand thread (PT x PT) High pressure typeClick here for an example of made-to-order products
We can also manufacture special shapes, sizes, and materials.