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TECHNICAL DATA
"Screws": You can refer to the history of screws, their types, shapes, applications, etc.
"Pipe Screw Standards and Tools": You can refer to the specifications of pipe screws, the Tap , gauge , and dimensions used.

* For inquiries about the standards of screws, etc., please refer to the link below.
・ JISC (Japan Industrial Standards Committee) website

* Due to the revision of the law on July 1, the first year of Reiwa, the name was changed from the Industrial Standardization Law to the Industrial Standardization Law.

Frequently asked questions about < screws>

• Metric threads

・ List of tolerances and tolerances of metric threads (JIS2 grade)

・ (Current JIS 6H, 6g) List of tolerances and tolerances of metric threads

・ Parallel and detailed

・ I don't know the alignment of the metric thread. （M1～M68）

• Unified screws

・ How to represent the size of the unified thread series

UNC and UNF

• W (wit) and U (unified) threads

What is the difference between UNF and UNJF?

• Pipe screws

• Pipe screw size and piping standards

• Combination of screws for pipes

・ What is the difference between PS and PF?

・ G and PF and tool sharing

• Pipe Screws 6A 8A 10A 15A 20A 25A 32A 40A

・ Sharing of RP, PS screws, and tools

・ What is the tool diameter of the pipe Tap ? If you convert size inches to millimeters, Tap is thicker.

・ Difference between U.S.-type pipe screws What is the difference between NPT and NPTF?

< Thread Type >

・ Thick Steel Conduit Screw CTG ~Atsukoden Tube Screw~

・ Thin Steel Conduit Screw CTC ~Thin Steel Conduit Screw~

• Tire valve screws for automobiles 5V1 and TV5 CTV5 and 5V2 for bicycles

• C-mount screws

• PG threads

• NC screws

• Camera release screws

• Valves for high-pressure gas cylinders V1, V2, V3

・ What is a BSP screw? What can I use with Tap and gauge ?