Machine Screws: Buy Metric

Indicates the screw follows ISO metric thread standards.

Measure the entire length , including the head, as these are designed to sit flush with the material surface. 3. Choosing the Right Material and Finish 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 Indicates the screw follows ISO metric thread standards

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 Choosing the Right Material and Finish The environment

Metric screws are identified by a standard callout, such as . Each part of this code tells you exactly what you are buying:

One of the most common mistakes when buying screws is measuring from the wrong starting point.

The Ultimate Guide to Buying Metric Machine Screws: From Specs to Selection