Assortment of precision turned parts, mostly brass, made by Eredi Baitelli

Custom turned parts and screw-machined components

A threaded fitting, a valve component, and a small-diameter pin place different demands on machining. Eredi Baitelli produces these and other custom turned parts in medium and high volumes.

Material, geometry, and dimensional requirements guide the machining process, with production cycles optimized for repeatability and competitive unit costs.

Materials we machine

  • Brass and specialty alloys

    Brass offers good machinability for high-volume production of fittings, valve components, and electrical parts. Leaded, low-lead, and lead-free alloys are available, including C38500 (CW614N) and C37700 (CW617N).

    Specialty alloys include lead-free ECO BRASS (UNS C69300), CUPHIN lead-free silicon brass, dezincification-resistant (DZR) brass, and ECOSI silicon brass.

  • Stainless Steel

    Available in AISI 303, 304, and 316L. These grades cover a range of corrosion-resistance requirements, with the grade specified according to the application and operating environment.

  • Free-Machining Steel

    Free-machining steel supports efficient screw machining of components with turned profiles, holes, and threads. Leaded grades are available for medium- and high-volume production.

  • Aluminum

    A lightweight option for precision turned components, with applications including electrical assemblies and plumbing and heating systems.

  • Bronze

    Bronze alloys are available for applications where friction and wear resistance are required.

Row of automatic bar feeders under overhead extraction ducts on the Eredi Baitelli production floor
Quality technician checking turned parts on an optical measuring system at Eredi Baitelli

Parts manufactured to your drawing

Precision components manufactured to customer drawings, across a range of profiles and geometries.

  • Fittings & Connectors

    Custom connection components with internal and external threads, wrench flats, through-holes, and hose-barb profiles.

    Turned brass fitting with hex flange and two male threads
  • Pins & Shafts

    Slender and stepped components with shoulders, grooves, cross-holes, and threaded sections.

    Stepped steel pin with grooves and a cross-hole
  • Bushings & Sleeves

    Hollow cylindrical components with smooth, flanged, stepped, or knurled profiles.

    Knurled brass sleeve
  • Threaded Rings & Nuts

    Custom rings and nuts with internal or external threads, hexagonal profiles, or knurled surfaces.

    Nickel-plated threaded ring with hex flange
  • Small-Diameter Precision Parts

    Small-diameter components with slender profiles, fine threads, grooves, and cross-holes, manufactured to the dimensions and tolerances specified on your drawing.

    Small-diameter brass pin with fine thread and flat

Surface finishing and heat treatment

Surface treatments and heat treatments are managed through qualified subcontractors when required for the finished part.

Row of turned fittings, bushings and nuts with chrome, nickel, zinc and natural brass finishes

Surface Treatments


  • Anodizing
  • Black oxide coating
  • Chrome plating
  • Trivalent chrome plating
  • Passivation and pickling
  • Zinc plating
  • Nickel, copper, tin, and silver plating
  • Nickel-free finishes

Heat Treatments


  • Annealing to controlled hardness
  • Stress-relief heat treatment

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