What is WR?

External thread Limit gauge (LG) is used to measure former JIS metric threads and unified threads, and NO GO side ring gauges for machine work. 詳細表示

What is an NPSM screw?

What is an NPSM screw? ANSI is a combination of external thread , internal thread and parallel threads with a relatively precise fit in the machine coup... 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

Can Rp and PS Threads Share Tools?

There are two types of parallel internal pipe threads: Rp specified in the current JIS and PS specified in the former JIS. Tools such as taps can be shared.... 詳細表示

Calibration of Screw Plug Gauges (Mea...

JIS stipulates that the calibration of screw plug gauges shall be performed using the three-wire method. While some users perform in-house calibration, it... 詳細表示

There is an "R" indication on the tap...

The taper plug gauge used for inspecting Rc internal thread is marked with "R". JIS B 0253, clause10 "Marking" stipulates that "the symbol for the thread ma... 詳細表示

The drawing specifies a Class 2 screw...

Example of inquiry If the drawing specifies a Class 2 screw thread, wouldn't it be acceptable to use a Class 1 gauge for screw threads and judge the part as... 詳細表示

gauge for Camera Tripod Screw

The plug gauge for the camera tripod screw is a special work. Separately, please request a quotation from OSG's sales through a trading company. 詳細表示

Gauge to measure internal thread mi...

It is called "Plug Gauge for minor diameter ". It is a standard stock item. The gauge shape is cylindrical without a screw shape. This is a set of GO a... 詳細表示

Standard screw thread gauge (Model No...

A standard screw thread gauge is a gauge that has been correctly made to the reference angle and dimensions of the thread. Applications include being used a... 詳細表示