Surface treatment

 

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Surface treatment

A wide range of surface treatments are available to provide corrosion resistance and lubricating properties. They provide a dissimilar metal barrier in the fight against corrosion and help to offset the effects of galvanic corrosion. In providing lubrication they offest the galling effect of certain alloyed metals.

  • white

    Cadmium Plating

    Provides high corrosion resistance and lubrication to prevent galling.
    Suitable up to 250°C


    Colour:
    Iridescent yellow

    Specifications
    DEF STAN 03-19
    QQ-P-416


    Previously DTD904

  • white

    Silver Plating

    To reduce galling of threads at high temperatures.


    Colour:
    Silver white

    Specifications
    DEF STAN 03-9
    BS2816:1989


    Previously DTD939

  • white

    Zinc Plating

    Provides corrosion resistance as an alternative to Cadmium.


    Colour:
    Iridescent yellow

    Specifications
    DEF STAN 03-20


    Previously DTD903

  • white

    Cadmium Plate & Olive Drab

    As specified on US military specs such as NASM21209.


    Colour:
    Olive Drab

    Specifications
    QQ-P-416

  • white

    Dry Film Lubricated

    Additional lubrication in high friction applications.


    Recommended for use with HELICOIL® screwlock inserts.


    Colour:
    Grey

    Specifications
    MIL-L-8937

  • white

    ArmaGuard

    Prevents galvanic corrosion between insert and parent material.


    Eliminates the need for zinc primers.


    Improves installation productivity.


    Colour:
    Glossy Black


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