Special screws from OEB : cold extrusion parts, turned and milled parts, recutting of screws, reduced shank screws, micro screws, heavy screws – various dimensions, materials, head shapes and other specifications can be realized on request.

OEB Special Fasteners since more than 100 years!

Otto Eichhoff GmbH & Co. KG (OEB) in Lüdenscheid/Germany has been a special screw manufacturer for over 100 years. During this time, we have built up a wealth of know-how in the field of fastening technology and, in parallel, a comprehensive knowledge of the market and the relevant industry. In the field of standard screws we are wholesalers. Our market continuity gives you maximum safety for your projects!

We believe: The dialogue is becoming more and more important in technical innovations!

In the beginning there is always the idea.

The sharing of ideas among several specialists is the number one factor for success, especially in view of increasing technical complexity! In other words: When smart minds talk to each other, that is still the highest level of communication!

The professional conversation in due time

  • assists with feasibility studies/manufacturability analysis
  • saves time in finding solutions
  • gives you the security to make the right technical and at the same time economical decision

Available from us: Initial sampling according to VDA, PPAP, etc. for customer-specific articles in smaller and larger quantities

Fasteners are three-dimensional – at least!

Fastening technology depends on an extremely large number of parameters, and there is a wide variety of solutions that can hardly be surveyed.

That is why we recommend that you involve us as a solution provider as early in the planning and design phase.

Whether products are simpler and less expensive or more complex and demanding – the connectivity is often affected as well. This opens up further opportunities for product optimization. We would be happy to contribute our know-how at this ” gateway “!

Therefore: We are looking forward to your questions, we are looking forward to new challenges and we are proud if we could support our valued customers effectively!

A brief overview special fasteners

Screws manufactured as turned and milled parts or mechanically reworked from:

  • Steel
  • Stainless steel
  • Brass

Screws with thin shaft

Cold forged items

Multi punch cold forged items

Micro precision screws

We manufacture and supply special screws for these industries, among others:

We manufacture and supply various special screws made of special steels and alloys, such as CrNiMo steels or Hastelloy, especially for these applications or industries:

  • Automotive
  • Electronic industries
  • Industrial plants and power plants
    • Chemical industries
    • Oil and gas exploration and production
    • Turbine control systems
    • Wind energy plants
  • Mechanical engineering, plant construction
    • Dump-pulps
    • Cooling systems
    • Hydraulic systems
    • Hydraulic cylinder
    • Pneumatic piston cylinders
    • Pneumatic control units
    • PS Gate valve
    • Control valves
  • Production of musical instruments
  • Sanitary industry
  • Solar technology

Products – technical data

Metric fasteners
According DIN EN ISO standards or customer drawings

Thread rolling screws acc.  DIN 7500
All common head shapes and drives

Thread cutting screws acc.  DIN 7513 – DIN 7516
All common head shapes and drives

PT-screws for plastics
According to drawing or based on existing international and national standards

Press-in screws, welding studs, welding screws
DIN EN ISO standards as well as special and drawing parts.

Multi-step parts/step bolts
As special and drawing parts

Cold formed parts: Forming is done on extrusion presses without heating, single-stage or multi-stage, for solid parts as well as hollow parts. Screws and bolts in double and multi-stage.

We produce turned parts on our precision automatic lathes and milled parts on our CNC-controlled automatic milling machines

In machining finishing, material is removed from a raw blank in a targeted manner in order to change the shape in detail. For screws for particularly tight tolerances, we remove a thin layer of the surface.

Cost-effective production as cold formed parts for batch sizes from 30,000 pieces. Also suitable as blanks for further machining into special parts. All products are sorted to suit automatic machines on request. Criteria and PPM values can be defined together.

  • Vast varieties in geometries
  • High complexity
  • Manufactured according to requirements
  • Favorable unit prices

Flanged bolts, parts with shoulder, internally threaded parts, externally threaded parts, special bolts, stepped bolts

For automotive industry, chemical industry, electrical industry, power plants, mechanical and plant engineering, musical instrument manufacturing, oil and gas exploration, oil and gas production, sanitary industry, solar technology, wind energy and others.

Materials
All common materials. Steel, special steels and alloys such as CrNiMo steels or Hastelloy, A2 and A4 stainless steel, brass, copper, aluminum and other light metals

Material classes and grades
3.9 – 12.9

Thread types
All common thread types

Drives and recesses
All common. PZ – PH – TX – Slot – Combined slots as well as special solutions, e.g. Single use drive

Head types
All common

Dimensions
Diameters Ø 1,6 – M120
Lengths up to  6000 mm
Precision screws from 0,6 mm wire diameter

Additional works
Finish machining: shank slotting, shoulder tip, shoulder point, tenon or other as required

Surfaces
All common. Galvanized (CrVI-free, RoHS-compliant), nickel-plated, chromated, Delta-Tone and Seal, Dacromet, Geomet etc. according to the specifications of the automotive and electrical industry (VDA standard).

Coatings
Thread lockers, thread sealants (e.g. Tuflok, ScotchGrip, Precote, Loctite, wax coatings).

Heat treatments
All common. Annealing, carbonitriding, tempering, heat treatment, case hardening. Other on request

Lot sizes

Cold formed parts from 30.000 pcs.

Smaller quantities after consultation

Documentation
All possible documentation for initial sampling is available: Standard Initial sample reports as cover sheet sampling, VDA Volume 2 Level 1 and 2, PPAP Level 1-3.

Turned and milled parts

Screws according to drawing

Threaded bolts

  • Multi-step parts
  • Threaded inserts/Screws/Cold extrusion parts

Your contact for special screws and fastening technology:

Torsten Häufler

Torsten Häufler

Head of Sales

Phone: +49 2351 9785-18
Fax: +49 2351 78530
Email: t.haeufler@eichhoff-schrauben.de

Peter Kubitz

Peter Kubitz

Managing Partner

Phone: +49 2351 9785-0
Fax: +49 2351 78530
Email: p.kubitz@eichhoff-schrauben.de

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