Contact Pins All parts illustrated on this page are suitable for injection-moulding. They are available in brass or bronze. Pre-tin plated, pre-nickel plated, pre-silver plated or selectively gold plated. Material thickness Material thickness Material thickness Material thickness We supply crimp terminals in a variety of different materials and surfaces. They can be ordered by adding an appendix to the article number. material: 0 brass 1 bronze 2 steel surface: 0 without surface treatment 1 pre-tin plated 2 pre-nickel plated Example for placing an order: 3183/02 = contact pin art. no. 3183 pre-nickel plated brass. All crimp terminals are supplied with paper linings.