Item Subject: cc:Mail Text We are planning to use OCC boards in assemblies that require the installation of a bulkhead. The bulkheads are normally mounted to the boards with a screw and nut. The mounting tab of the bulkhead contacts grounding pads on the board. With HASL, there has not been an issue with using Zn-plated bulkheads or screws. With OCC, we are concerned that the use of Zn may cause electrolytic corrosion. Has anyone tested OCC with Zn-plated bulkheads or attachments? Has anyone experienced corrosion in such a case? Thanks, Denis Mori Hewlett-Packard Co. Workgroup Networks Division Roseville, CA [log in to unmask]