Buy Metric - Machine Screws

Measure from under the head to the very tip.

The distance between thread peaks in millimeters. If this number is omitted (e.g., M6 x 20), it is assumed to be a coarse thread , which is the most common variety. 20 (Length): The length of the screw in millimeters. 2. Measuring Length Correctly buy metric machine screws

The environment of your project dictates the material you should choose at retailers like RS Components or Bolt Base . Understanding Metric Fasteners Measure from under the head to the very tip