Your Guide to Metric Fasteners

July 10, 2020
Background photo of assorted nuts and bolts

The vast majority of metric fasteners are made to DIN (deutsches Institut für Normung) otherwise known as the German Institute for standards. This standard, created long before ISO (International Organization for Standardization), has DIN standards for almost everything. Thread Pitch -Metric bolts are identified by the capital letter “M” followed by the nominal diameter, thread…

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