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JIS B 8246 Valves for high-pressure gas containers This is a symbol for the container mounting part.
The shape of the thread is a triangular screw with a rounded thread at an angle of 55 degrees, and the pitch is measured along the axial center.
Screw Type: Face Right Angle
* The right angle of the surface is that the thread is at a right angle to the tapered surface.
Taper angle 3/26
The screw shall be a right-hand thread.
Screw Type: Face Right Angle
* The right angle of the surface is that the thread is at a right angle to the tapered surface.
Taper angle 3/26
The screw shall be a right-hand thread.