How to check the wear of the screw pl...
There are three ways to do this: (1) Measurement by the three-needle method JIS B0271 (2) Calibration (3) Judgment by wear inspection ring gauge T... 詳細表示
Screw threads for Valves for High Pre...
JIS B 8246 This is a symbol for Screw threads for Valves for High Pressure Gas Cylinders. The shape of the thread is a triangular screw with a rounded t... 詳細表示
What is the revision of the JIS stand...
It refers to the introduction of ISO classes in 1973. Former JIS standards were operated as Japan's own standards with classifications of first, second, and... 詳細表示
What is a trapezoidal screw? Tr TM TW...
What is a trapezoidal screw? Tr TM TW ACME It is a target cross-sectional screw with a large proportion of the top of the mountain and the bottom of the val... 詳細表示
Difference between machining and insp...
Difference between machining and inspection (WP/IP vs. WR/IR) Both are GO NO side screw gauges, but there is a difference in tolerance. It is recommend... 詳細表示
How to represent the size of a unifie...
How to express the name of the unified thread series There are two types of unified threads: No. XX notation and notation using fractions such as 1/4. ... 詳細表示
Types of screws PS and PF Is it possible to share thread machining tools and gauges? Both are parallel screws for pipes, but the tolerance settings are diff... 詳細表示
Rp and PS threads, tool sharing
Rp and PS threads, tool sharing There are two types of parallel internal threads for pipes: Rp of the current JIS and PS of the former JIS. It is possibl... 詳細表示
Is it possible to share G, PF, and to...
Is it possible to share G, PF, and tools? Tools such as taps, threaded round dies, and other machining tools can be shared. However, the gauge must be as... 詳細表示
List of Thread Standards A list of the standard numbers and symbols of the main screws is available in our Hole Thread Machining Tool Product Catalog. Howe... 詳細表示
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