Profile: Cross Manufacturing Co (1938) Ltd manufactures products for aerospace, power generation, automobile and associated industries. Our products include piston, sealing & retaining rings & circlips, brush seals, turbocharger seals, spring lock rings, diecaster rings and spiralock wire thread inserts. Cross rings are manufactured from wire or rod, using a forging process. Our thread lock rings are reusable locking elements suitable for fitting to many threaded assemblies including shaft nuts, back nuts and pipe fittings.