Screw Threads for High‑Pressure Gas C...
JIS B 8246 specifies the screw threads used in valves for high‑pressure gas cylinders. The thread form is a 55‑degree rounded‑crest triangular thread, and t... 詳細表示
PT Thread Taper Angle – What is the s...
PT threads have a taper of 1/16, which corresponds to an included angle of 3°34′47″. The slope angle on one side is half of that taper (0.5/16), which is 1°... 詳細表示
pipe screw 6A 8A 10A 15A 20A 25A 32A 40A
In drawings, “10A” may be written in place of the pipe thread designation. This “10A”refers to the 3/8‑inch pipe thread size. ○○A is a size expression in... 詳細表示
What is an NC thread? Is it possible ...
NC threads are American 60-degree threads. Tap can be shared, but gauges must be treated as special‑purpose items. 詳細表示
In general, the term straight threads often refers to a parallel thread. For example, if a customer specifies only “1/4 straight thread” in an order, the ... 詳細表示
What is an NPTF thread? It is an ANSI standard tapered thread. Compared to NPT, it has excellent airtightness, and it has a thread profile that can ens... 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
Which Tap can BSF internal thread pro...
BSF stands for F in BS (UK). It corresponds to the fine line of W (thread angle 55°). Please note that it cannot be shared with a unified thread angle of 6... 詳細表示
Implantable bolts? Stud bolts?
Implantatable bolts: Also known as stud bolts. This is a standard that specifies the characteristics of steel implantation bolts that are commonly used. Th... 詳細表示
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