Leads | Iridium | Filament Assemblies | Precious Metal&Alloys | Examples e- Filaments supplies Premium glass sealing feedthroughs. Available in Kovar or Tungsten with straight nickel or a flexible wire Leads can be pre-glassed with Schott's 8250 Kovar sealing glass or Schott's 8487 Tungsten sealing glass Below are our four standard feedthroughs. Custom parts can be made on request Email us at leads@efilaments.com for custom orders of 50 pieces or more e-Filaments also offers custom single or multi-pin glass base feedthroughs Can be made with our standard leads or to your custom needs. Schott's 8250 Kovar sealing glass or Schott's 8487 Tungsten sealing glass Examples of some custom glass base feedthroughs can be viewed at: Examples   e-Ni6-W5-Ni6 0.060" X 1.5"Nickel X 0.050" X 0.750" Tungsten X 0.060" X 1.5"Nickel Non-Beaded Price $44.00 Per (10) Piece Bundle Pre-Beaded Price $320.00 Per (50) Piece Bundle A UPS or Fed Ex Account Number will be required for International Orders Non-Beaded leads are sold in bundles of 10 pieces. Pre-Beaded leads are sold in bundles of 50 pieces. For orders of 15 bundles and more please email us at: leads@efilaments.com e-Ni3-K3-FW4 0.030" X 0.75" Nickel X 0.030" X 0.25" Kovar X 0.040" X 5.5" Flexible Wire Non-Beaded Price $51.00 Per (10) Piece Bundle Pre-Beaded Price $355.00 Per (50) Piece Bundle e-Ni45-W4-FW5 0.045" X 3" Nickel X 0.040" X 1" Tungsten X 0.050" X 3.5" Flexible Wire Non-Beaded Price $48.00 Per (10) Piece Bundle Pre-Beaded Price $340.00 Per (50) Piece Bundle e-Ni6-K6-FW5 0.060" X 4.5" Nickel X 0.060" X 0.75" Kovar X 0.050" X 5.5" Flexible Wire Non-Beaded Price $53.00 Per (10) Piece Bundle Pre-Beaded Price $365.00 Per (50) Piece Bundle