All of our Metric hardware is sold with the standard (popular) "pitch" (thread spacing) as follows:
(M2=.4) (M2.5=.45) (M3=.5) (M4=.7)
For your information, approximately 25 millimeters equals
1 inch. The first number is the width and the second number is the length. As an example, an M3x25mm is 3 millimeters wide by about 1 inch long. Also, as with most screws, you do not count the head as part of the length.
After entering the number of packages that you want for each item, simply click the "Add To Basket" button.
Each size is listed twice. First the regular pack, and then the larger economy pack.