All mechanical manufacturing steps for
the production of a screw – from turning the raw material to welding
the hard-facing up to final polishing – are executed by murex employees
our own production work in Wängi (CH). The screws have to be sent
to extern specialists just for heat treatments to
harden the surface (for example gas nitriding) and for coating
There are various materials (also stainless steels) available for
nitriding-screws, double-screws and hard-faced screws (basis
through-hardened screws, there are different through-hardenable
materials (tool steels and powder metallurgy steels)
For all our screws we offer you various coatings in cooperation
partner companies: Chrome-plating, chemical nickel-plating,
TiN-coating, CrN-coating, high speed-flame spraying (full packaging).
Further coatings and procedures on request.