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
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
What is a PS thread? It is a thread commonly called a parallel screw for JIS (English type) pipes, and it is a parallel thread for tight coupling of the old... 詳細表示
What is a PF thread? It is a screw commonly called a parallel thread for JIS (English type) pipes, and it is a parallel thread for mechanical coupling of th... 詳細表示
Pipe taper gauge (R and PT) are not differentiated by accuracy class. There is a distinction between parallel screws for pipes gauge (G and PF). G scre... 詳細表示
Gauge Inspection Certificate Web System
From which production date can this system be used? It is available for products completed (manufactured) in or after April 2011. ▽References: Gauge Inspec... 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
What is the difference between UNC an...
The F in UNF stands for fine pitch. On the other hand, the C in UNC stands for coarse pitch . For example: 5/8-11 UNC (11 peaks between 1 inch) 5/8-18 UNF ... 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
Interpretation of force when using sc...
If a screw gauge becomes stiff midway through or requires force to pass through, it cannot perform a proper inspection and should be discontinued. Proper ... 詳細表示
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