A / B is written on the GO thread gau...

The notation A/B in the accuracy column of the GO screw gauge of the parallel screws G and PF for pipes means that they can be shared in the pass/fail judgme... 詳細表示

W (whitworth) and U (unified) threads

W (whitworth) threads have a thread angle of 55°, and U (unified) threads have a thread angle of 60°, so it is not recommended to fit them together. 詳細表示

What is a BSP screw?　What taps and ga...

BSP is a standard for British (BS) pipe (P) threads and is classified into the following three types. Since the screw shape and dimensions are the same as... 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

Screw threads for thick steel Conduit...

Screw threads for thick steel Conduits "CTG" It is a screw specified in JIS as a standard for conduit screws. JIS C 8305 (Steel conduit) As a symbol f... 詳細表示

What is a gauge calibration certifica...

Calibration means how much error is the value represented by the measuring instrument compared to the standard value (standard instrument)? It refers to the ... 詳細表示

C‑mount threads and available machini...

A C‑mount thread is a mounting thread for photographic lenses used on motion‑picture cameras, as specified in the former JIS standard. The designation 1‑32U ... 詳細表示

Calculating pitch from threads per inch

Since the value represents the number of threads within 1 inch (= 25.4 mm), the pitch in millimeters can be calculated by dividing 25.4 by the number of thre... 詳細表示

Coarse pitch of metric thread (M1~M68...

In the size of M1~M68, the yellow part in the attachment below is the coarse pitch. Reference: List of the coarse pitch 詳細表示

(Current JIS 6H/6g) List of Tolerance...

(Current JIS 6H/6g) List of Tolerances of Metric Screws (ANSI) ASME B1.13M (DIN) ISO965 詳細表示