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Processing and treatment

The number of possible application situations for fasteners is so great that not all fastening problems can be solved using normed and standardized parts. They often require special individual solutions tailored to the intended purpose in each case. These must not always be individually-manufactured special and/or designed components, however; making subsequent alterations to tried-and-tested articles will often suffice.

Subsequent coating or treatment of the material surfaces can also be necessary for a wide variety of reasons: for easier machining, to improve the surfaces‘ protection against corrosion, for screw/bolt locking or simply to enhance the surfaces‘ appearance. In this area, too, Lederer collaborates with specialists who satisfy all customer requirements with precision.

Service

  • Cutting down to special lengths
  • Thread cutting (also fine and left hand thread)
  • Cranking of dog point and groove (DIN 561)
  • Cranking of cone point and groove (DIN 564)
  • Slotting
  • Shank relieving (DIN 7964)
  • Cranking of cup point
  • Drilling of splits – pin holes
  • Drilling of head holes
  • Polishing

Surface protection:

  • Zinc coating
  • Nickel plating
  • Tin coating
  • Anodizinh
  • Zapon lacquer
  • Delta-seal and others
  • Geomet (Dacromet)

Appearance:

  • Tanning
  • Coppering and brassing
  • Burnishing
  • Black washing
  • Chromium Plating
  • Varnishing
  • Zapon lacquer

Improved Sliding properties:

  • Coating with lubricant
  • Waxing
  • OKS coating
  • Molykote coating
  • Acid zinc coating
  • Geomet (Dacromet)

 

Securing elements:

  • Tuflok
  • Eslok
  • Long-Lok
  • Klemm-Tight
  • Keilstopp
  • Adhesive