rpとpsねじ、工具の共有 | オーエスジー

No : 912
公開日時 : 2019/02/28 12:58 更新日時 : 2024/08/28 02:29
answer
Rp and PS threads, tool sharing
 
There are two types of parallel internal threads for pipes: Rp of the current JIS and PS of the conventional JIS.
It is possible to share tools such as taps.
However, gauges cannot be shared. You will need a gauge as instructed in the drawing.


Tapered female thread + tapered external thread
screw
PT Female Thread
PT Male Thread
JIS Standards
After the amendment
→→→
RC internal thread
R Male thread
Tools for making screws
PT Tap
PT Threaded Round Die
← tool can be shared→
PT Tap
PT Threaded Round Die
Tools for inspecting screws
PT Plug Gauge
PT Ring Gauge
Tools cannot be shared
R Plug Gauge
R


Parallel internal thread + tapered male thread
screw
PS Female Thread
PT Male Thread
JIS Standards
After the amendment
→→→
RP internal thread
R Male thread
Tools for making screws
PS Tap
PT Threaded Round Die
← tool can be shared→
PS Tap
PT Threaded Round Die
Tools for inspecting screws
PT Plug Gauge
PT Ring Gauge
Tools cannot be shared
R Plug Gauge
R-Ring Gauge