... per customers requirement, especially for Button Contacts, and Tri-metal Contact Rivets, etc. We promise we have superiority over others ... fast delivery, competitive price and high quality. 2.Specifications:Special contact rivets1. Head diameter: 2.2-8mm2. Samples or drawing ... is available 3.Material:Ag, AgCd, AgCdo, AgNi, AgFe, AgCu and other common material. More competitive ...