What is an Rp thread?

What is an Rp thread? It is a thread commonly called a parallel thread for JIS (ISO) pipes, and it is a parallel internal thread for tight coupling. （JIS B ... 詳細表示

What is the revision of the JIS stand...

It refers to the introduction of ISO tolerance classes in 1973. Under the former JIS, Japan used its own classification system consisting of first, second, ... 詳細表示

<Thread > the size and pitch of the ...

If you want to convert the size and pitch of the unified thread standard to millimeters, please refer to the conversion table below. You can check the numbe... 詳細表示

Tire Valve Screws < Thread Standard> ...

・Automobile tire valves This is a standard for tire valves used in automobile tires and motorcycle tires specified by JIS. JIS D 4207 ・Bicycle tire valv... 詳細表示

How to use the mating inspection scre...

The Fit Inspection Screw Plug gauge GF is a gauge used for new thread thread ring gauge GR. For the threaded screw ring gauge GR, it is judged to pass by pa... 詳細表示

Differences between G and PF gauges

Both PF and G are parallel threads for pipes, but the gauges have different dimensional tolerances. Therefore, it is possible to pass with a PF gauge but fai... 詳細表示

I feel that the outer diameter of the...

M8×1.25 For class 2, The outer diameter of the GO gauge (GP) is +6~+18 micrometers compared to 8. The outer diameter of the Tap varies slightly depending o... 詳細表示

Interpretation of force when using sc...

Interpretation of the amount of force when using screw gauge _screwing by hand without strain Regarding the use of screw gauge , JIS (JIS B 0251) des... 詳細表示

What is a Wear Inspection Screw Plug ...

The wear inspection screw plug gauge is a gauge to check whether the limit ring gauge for screws is too worn. The diameter of the limit ring gauge for scr... 詳細表示

How to check the wear of the screw pl...

There are three ways to do this: (1) Measurement by the three-needle method JIS B0271 (2) Calibration (3) Judgment by wear inspection ring gauge T... 詳細表示