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Nor-Cal Products ISO hardware are manufactured to the International Standards Organization specification so they can be mated to other manufacturers'™ ISO flanges. 
  • Bolts and bolt kits
  • Replacement O-rings and Centering Rings
  • Optional Fastener Clamps
  • Centering Rings with Screens
Nor-Cal Products manufactures a full line of flanges, fittings and adapters for vacuum applications. We offer NW (KF), ISO, CF, ASA, Wire Seal and Chain Clamp style flanges and fittings to fit almost every application. Custom flanges are available upon request. We specialize in manufacturing components from 304 or 316 stainless steel with several items available in aluminum as well. Centering rings, gaskets, clamps, bolts and other hardware components are available to complete your project. We maintain a large inventory for prompt deliveries and to meet those unexpected demands. 

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