ISO 9001:2015 · IATF 16949 Certified

Get Instant Quote
Machined Contacts

Machined Contact Pins & Terminals

Machined contacts for connectors and sensors, Swiss-turned in volume, with the mating diameter ground to ±0.005 mm. Send your drawing and the first pieces can ship in 3 days.

  • Tolerance±0.005 mm
  • DiameterØ 3 – 80 mm
  • MaterialC36000 · C37700
Get a Quote for This Part
Download Spec Sheet
  • Mill certificate and inspection record on every shipment
  • First article report signed off before production
  • Orders accepted from a single piece
Specifications

Machined Contact Pin Specifications

  • Dimensional capability
    DiameterØ 3–80 mm
    Length200 mm billet; L/D per drawing
    Mating diameter tolerance±0.005 mm ground; ±0.01 mm turned
    Surface finishRa 1.6 µm standard; Ra 0.4 µm on request
    ThreadsM1.6–M36, UNC / UNF
    Secondary featuresCross holes, flats, knurling, grooves, laser marking
  • Ordering
    Minimum order1 piece
    Prototype lead time3 days (fast); 2–3 weeks typical
    Production lead time4–6 weeks typical
    Batch size100–100,000+ pieces
    FilesSTEP, IGES, SolidWorks, ProE, PDF, DWG
    PackingTrays, VCI film, anti-rust oil
Material

Metals and
Plating

Call out alloy and plating on the drawing.

Quality Control

Traceable Contacts, Checked
Every Lot

CMM inspection of a machined aluminium part
  • 01

    Incoming material

    Each bar arrives with its mill certificate, checked against the grade and heat number on your drawing before cutting. Traceability runs from raw material to finished pin.

  • 02

    First article inspection

    The first pin off the machine is measured on the CMM, mating diameter included, and the FAI report is sent to you. Series production is released on your sign-off.

  • 03

    In-process SPC

    Operators pull pins during the run and check them to an AQL plan, which flags diameter drift while the lot is still being cut.

  • 04

    Final inspection

    Every lot gets a 100% dimensional and visual check, with CMM and optical measurement available for critical diameters. The inspection record and material certificate travel with the packed pins.

FAQs

Contact Pin Answers,
Before You Ask.

Questions on specs, lots and files. Send a drawing and we reply within one business day.

Ask a Question
  • Machined or stamped: which do my contacts need?

    Screw-machined contacts suit pins with cross holes, knurls, grooves or a mating diameter that must repeat tightly. Stamped and formed contacts suit bent flat contacts at very high volume. We make machined contacts to your print.

  • What tolerance can you hold on pin diameters?

    Diameters hold ±0.005 mm when ground and ±0.01 mm when turned. Surface finish is Ra 1.6 µm as standard and Ra 0.4 µm on request. See machining tolerances for how to call them out.

  • What are your minimum order and lead times?

    You can order a single piece. Fast-track prototypes ship in 3 days and standard prototype lots in 2–3 weeks. Series production usually takes 4–6 weeks, with rush dates quoted job by job.

  • Which base metals and platings can you supply?

    Base metals include brass C36000 and C37700, copper and stainless steel. Plating options are nickel, electroless nickel, tin, copper, chrome and zinc. Any other specification on your drawing is confirmed in the quote.

  • What files do you need for a quote?

    A STEP or IGES model plus a 2D drawing with GD&T is ideal. SolidWorks, ProE, PDF and DWG files also work. An NDA is available on request before you share anything.

  • What inspection documents come with each lot?

    Every lot ships with a material certificate and an inspection record, and an FAI report is issued before production starts. FAI and PPAP packages are available on request. Parts are made under an ISO 9001:2015 quality system with full traceability.

Parts Starting at $XXX
Get in Touch

Upload Your Files.
Quoted Within Hours.

Send your CAD drawings, 2D/3D files, or technical documents securely. Our team reviews promptly, protects your IP fully — and signs an NDA on request.

Get a Quote