M22 Metric Thread
M22 Metric Thread Dimensions and Pitch
Below are the key dimensions for M22 metric threads: pitch, tap drill and clearance drill according to ISO 724:2023.
M22 Coarse (standard)
Welcome to our M22 Metric Thread Page, your dedicated hub for quick measurements on M22 metric threads. We've accumulated an exhaustive database for all typical metric threads you'll require for your parts, covering key dimensions like thread pitch, tap drill, and clearance drill. This page is a one-stop-shop for engineers, machinists, and hobbyists looking for reliable and precise details.
M22 Coarse Pitch Dimensions
Nominal Size
d=D
p
r
d2=D2
d3
D1
h3
H1
Tap Drill
M22
22
2.5
0.361
20.376
18.933
19.294
1.534
1.353
19.5
All dimensions stated in are mm (millimetre)
M22 Fine Pitch Dimensions
All dimensions stated in are mm (millimetre)
ISO Metric Thread profile
d=D: Major Diameter
p: Pitch
r: Root Radius
d2=D2: Pitch Diameter
d3: Minor Diameter Male Thread
D1: Minor Diameter Female Thread
h3: Thread Height Male
H1: Thread Height Female
Major Diameter
The Major Diameter is the largest diameter on the thread and is measured from the thread crest to crest (peak of the thread).
Pitch
This is the distance (mm) from one thread to the next, this can be measured from tip to tip or groove to groove. Pitch can also be defined as TPI, which stands for threads per inch.
Minor Diameter
Minor Diameter is the smallest diameter on the thread and is measured from the thread root to root (Bottom of the thread).
Thread Angle
The angle between the thread faces. 60 degrees in the example above.
Right-Hand Thread
The thread will assemble when rotated clockwise. "righty tighty lefty loosely"
Left-Hand Thread
The thread will assemble when rotated counter-clockwise.
Frequently Asked Questions
What is the pitch of an M22 thread?
The pitch for an M22 thread is 2.5 mm.
What is the tap drill for an M22 thread?
The tap drill for an M22 thread is 19.5 mm.
What size is a clearance hole for an M22 thread?
The clearance drill for an M22 thread is 24 mm.
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