Bulkhead Clamp

Bulkhead clamps are used to fasten ISO-QF (KF) style flanges and components directly to valves, chamber walls, baseplates, or bulkheads. The object to which the flange is sealing must have a compatible bolt hole pattern and sealing groove machined into the sealing surface.



  • High Vacuum Rated to 1×10-8 Torr
  • Compatible with all ISO standard vacuum flanges and fittings



  • Body: Aluminum
  • Hardware (pins, studs and hinges): Stainless Steel
  • Bolt size: 10-32×5/8


Product Notes

  • Utilizes a standard QF seal assembly
  • Bolts included

*Dimensions are in inches unless otherwise specified

Part IDReference NumberA B C # Bolts 3D CADDrawingUnit PriceIn StockQty, Add To Cart
Part ID4000000Reference NumberQF10/16-BHCA 0.36B 2C 1.5# Bolts 63D CADLoginDrawingLoginUnit Price$23.50Contact
Part ID4000001Reference NumberQF25-BHCA 0.39B 2.38C 1.89# Bolts 63D CADLoginDrawingLoginUnit Price$24.508
Part ID4000002Reference NumberQF40-BHCA 0.37B 2.94C 2.44# Bolts 63D CADLoginDrawingLoginUnit Price$28.005
Part ID4000003Reference NumberQF50-BHCA 0.4B 3.75C 3.25# Bolts 83D CADLoginDrawingLoginUnit Price$35.00Contact