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What are the standard metric threads?

What are the standard metric threads?

ISO Metric Machine Screw Thread Dimensions

Thread Size Nominal Diameter (mm) Thread Pitch (mm)
M5 5.0 0.80
M6 6.0 1.00
M7 7.0 1.00
M8 8.0 1.25

What size thread is M10?

Thread Geometry – Metric Coarse

Thread Major Diameter Pitch
M7 7.0 1.00
M8 8.0 1.25
M9 9.0 1.25
M10 10.0 1.50

How do you specify metric threads?

Designation. A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter) and the pitch P, both expressed in millimetres and separated by the multiplication sign, × (e.g., M8×1.25).

What size is M12 thread?

Tap size Basic major dia (mm) Basic major dia (inch)
M10 x 1.25 10mm .3937
M12 x 1.75 12mm .4724
M12 x 1.25 12mm .4724
M14 x 2 14mm .5512

What does m3 0.5 mean?

Full Member. 0.5 is the pitch, which is standard pitch for m3.

How do you read a metric thread?

Taking a closer look at this description, let’s explore its meaning:

  1. M = This designates the fastener is a metric size.
  2. 10 = The nominal diameter in millimeters.
  3. 1.0 = The thread pitch, or distance between threads, in millimeters.
  4. 20 = The fastener’s length, in millimeters.

What angle are metric threads?

60°
M – Metric Thread (ISO) The Metric Thread is one of the first internationally agreed general-purpose thread type. The V-shaped thread form has a 60° flank angle and male and female threads are both parallel (Figure 4).

Is M10 a 10mm?

If the size is M10 x 25, that would mean that the diameter is 10 mm. The 25 indicated a length of 25 mm. A matching nut would be labeled M10, which also doesn’t require a thread pitch since it’s a course thread fastener.

How are metric screws sized?

The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters (millimeters is abbreviated “mm”). If you need to know the threads per inch of a metric fastener, first convert pitch from millimeters to inches (multiply by 0.03937), then divide 1 by that number.

What is the difference between M3 and M3 5?

But the M3. 5-0.35 has close to double the number of threads per inch of a 6-40, so its threads are very closely spaced (0.014 inches, or 0.35 mm)….Table 3.

Metric Closest Inch
M3-0.5 4-48 (Smaller)
M3.5-0.6 6-40 (Same)
M4-0.7 8-36 (Larger)
M5-0.8 10-32 (Smaller)