Galvanic Corrosion Data

PDF Data Sheet

Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. A similar galvanic reaction is exploited in primary cells to generate a useful electrical voltage to power portable devices.

This phenomenon is named after Italian physician Luigi Galvani (1737-1798).

A common example of galvanic corrosion occurs in galvanized iron, a sheet of iron or steel covered with a zinc coating. Even when the protective zinc coating is broken, the underlying steel is not attacked. Instead, the zinc is corroded because it is less "noble"; only after it has been consumed can rusting of the base metal occur. By contrast, with a conventional tin can, the opposite of a protective effect occurs: because the tin is more noble than the underlying steel, when the tin coating is broken, the steel beneath is immediately attacked preferentially.

Rivetnut

Engineering Performance Figures

Engineering Data for the tensile strength and push out force of Rivetnuts.

Self Clinch Blind Nut

Data Sheet

Self Clinch Blind Nut, performance data, Push Out Force, Torque Out for M3 - M6.

Screw Conversion Chart

Metric - Imperial

The date sheet is a conversion table, showing Metric Size to Imperial Size conversion.

A handy sheet to get the right size screw.

Metric Coarse Thread

Standard Data Sheet

Metric screw threads are the most commonly used worldwide type of general purpose screw thread.

They were one of the first international standards agreed when the International Organization for Standardization that was set up in 1947.

Metric bolt and screw threads but did not come into widespread use until 1960.