ZG1 2 is how to convert pipe thread to millimeters?

In terms of plumbing:

ZG1 2-diameter.

It is D15, and the outer diameter is a tapered pipe thread.

1 2 inches to metric is.

1 8 8 8 1 4 3 16 5 16 is an imperial length measure in inches, 1 inch =

Converted to metric system are:;;

Supplementary questions: 1 4"for 1 4 cents. 1 inch = 8 cents. 1 4 Cents = Hope.

ZG conical angle 1:16

Check the table to get the basal path, large diameter, tooth height, 19 teeth per inch.

The conical part of the hair embryo is 12 long, the diameter of the small head, the diameter of the large head.

The end of the thread is a path.

z20；g76

p020255

z-12r-1

p856q350i19

Inch non-threaded seal pipe thread, tooth angle 55 degrees, the specific size is shown in the attached drawing.

G represents the thread**, 1 4 is the nominal diameter of the thread, and M represents the thread screw length (medium).

Threaded bottom hole = thread size * When choosing a drill bit, take the drill bit closest to this size.

If you tap the wire, ZG1 2 reaming to.

ZG3 4 reamed to.

ZG cone pipe thread code, is a taper sealing pipe thread, taper is 1:16, 11 teeth per inch, 55 degrees tapered thread, the size of the base surface outer diameter, middle diameter, inner diameter, effective length, reference distance is the inch seal pipe thread, before 1987 in China for the sealing of the tapered pipe thread code, is not divided into internal and external threads, are called ZG.

Not all right, ZG1 2 is the old standard tapered thread, equivalent to RC, but slightly larger than the RC hole size, compared to the old standard of the thread small diameter hole is new.

The one-half inch 55° cone pipe thread is the old standard method, the new standard method uses R for the external thread, and the internal thread uses RC. The specific dimensions are shown in the figure below

The size of the inner diameter of the tube.

g1 2 = 4 points, outer diameter, 1 inch 14 teeth. G is the general term of pipe thread, that is, the thread is processed from a cylinder.

G stands for 55° non-threaded sealed pipe thread which is the imperial standard, and 1 2 means nominal diameter, just like M 12 in our ISO standard.

1 2 If you change to the metric system, the specific dimensions are as follows.

The large diameter of the thread, converted to millimeters: 1 2 inches = 1

The one-half inch 55° cone tube screw is equipped with wisdom pattern, which is the old standard imitation spike answering method, the new standard method uses R for the outer snail stove pattern, and the internal thread uses RC. The specific dimensions are shown in the figure below

55 degree tooth angle of non-sealed pipe thread Xunchen, according to GB T7307 standard 1 8" pipe thread, each part size: tooth angle 55°, 28 teeth per inch, pitch tooth height, outer diameter, middle diameter, bottom diameter.

If it is GB T7306 seal pipe thread, there are two kinds of cylindrical height and cone, I don't know which one you are asking? However, the basic size of the two is the same, but the taper of the conical thread is 1:16 like Qichang lead, and the radial size on the base surface is the same as that of the cylindrical pipe thread.