Metal Inserts

The following metals are used in the production of our inserts and some products:

  • Automatic steel, high speed, leaded CF9SMnPb36 according to UNI 4838/80
  • Cold formed steel C10 according to UNI 3740
  • Automatic brass, high speed OT58 according to UNI 5705/65
  • Die cast zinc, aluminium, copper alloy (Zamak ZnAl4Cu1 – alloy Zl0410) according to UNI EN 1774
  • Drawn anodised aluminium, alloy 6060 according to UNI 573/2
  • Stainless steel X10CrMnS1809 according to UNI 7890, AISI 303
  • Stainless steel X10CrMnS1810 according to UNI 7890, AISI 304


The type of treatment used for the metal inserts is specified on every page of the catalogue. A list of the treatments have been summarised below.

Contact our sales office direct to request a copy of the data sheets.


SHINY BLUE GALVANISING: standard treatment for all the inserts with threaded stud and for inserts with through-holes in the A-C-D-E-N families.

BLACK OXIDE TREATMENT (BLACK OXIDATION): standard treatment for a part of the M family of handgrips. On request this treatment can also be applied to the other types of inserts.

EPOXY POWDER PAINT: standard treatment used for colouring the A family zamak lever bodies.


On request and for reasonable quantities, other types of surface finishes can be applied; these include:

DACROMET: a special type of treatment which involves the application of a coating which is highly resistant to weather extremes. Low-cost alternative to stainless steel. On request this treatment can also be applied to other insert types.

SHINY YELLOW GALVANISING (YELLOW PASSIVATION): is similar to blue galvanising and can be applied to all metal inserts.

BLACK GALVANISING: is a special application of a layer of coating which is composed of metal oxides. Abrasionsensitive, easily-scratched surface.

NICKEL PLATING: is a type of chemical plating of a layer of nickel. It is used because of its great resistance to weather extremes. It can be applied to all steel and brass inserts. It is non-compatible with food applications due to the presence of nickel.