Description
Energy & Power · Drawing-based custom machining
Precision Connector Contact Pin: Application & Engineering Review
Slender contact-pin geometry for a reviewed electrical connector or test interface. This component geometry is presented to help engineering and purchasing teams specify a custom part. Final material, dimensions and suitability are defined by your approved design.

What problem should this part solve?
Electrical performance depends on base alloy, contact force and plating as well as the turned dimensions. Start with the functional interfaces so that manufacturing and inspection work from the same acceptance criteria.
Material, process and inspection plan
| Application | Slender contact-pin geometry for a reviewed electrical connector or test interface. |
|---|---|
| Manufacturing route | Swiss-type or precision CNC turning of the pin, shoulder and termination geometry. |
| Material options to review | Specify a suitable copper-alloy grade, conductivity and mechanical requirements rather than inferring material from color. |
| Surface finish to specify | Discuss gold, silver, tin or other specified plating with thickness and contact-area masking agreed. |
| Critical inspection features | Pin diameter, straightness, shoulder position and plating requirements; electrical testing is agreed separately. |
| Dimensions & tolerance | Made to the approved customer drawing. Supply overall dimensions in mm, datums, fits and feature-specific tolerances; final capability is confirmed after engineering review. |
| Prototype & production | Quote sample and repeat-order quantities separately. Lead time, inspection documents and delivery scope are confirmed in the quotation. |
Machining difficulty and practical solution
Swiss-type or precision CNC turning of the pin, shoulder and termination geometry. Pin diameter, straightness, shoulder position and plating requirements; electrical testing is agreed separately are the features to prioritize in the setup and inspection plan. Review tool access and workholding before freezing the drawing; agree any secondary operation rather than assuming it is included.
RFQ and sample approval checklist
Provide the CAD model and revision-controlled drawing, exact material grade, pin diameter, straightness, shoulder position and plating requirements; electrical testing is agreed separately, required finish and prototype/production quantities. Identify the features that control assembly and state the reports needed for release.
- Approve the first-piece measurement scope and the applicable drawing revision.
- Confirm material documents, final finish and packaging needed for your assembly.
- Review the sample against mating parts before approving repeat production.
Can LXCET review a custom version?
Send your drawing for a feasibility review of custom turned copper alloy connector contact pin. The equipment and process guide explains listed machine ranges; the quality and inspection page explains how to define acceptance evidence. A machine’s travel or listed precision value is not a universal finished-part tolerance.
Request a Drawing Review → tonyzhou@lxcet.com
Related Energy & Power components
Technical reference and image scope
Contact base material and plating serve different mechanical and environmental functions; a machined shape alone does not establish an electrical rating. TE Connectivity contact-material guidance.
Product photograph from the existing LXCET media library. Application descriptions are engineering review examples, not claims of a delivered customer program, certification or tested service rating. Material cannot be verified from appearance alone.
Precision Connector Contact Pin
Slender contact-pin geometry for a reviewed electrical connector or test interface. Review materials, machining, surface finish and critical inspection features with LXCET before quotation.
Customizable parameters
Alu:6061/7075/5052
Steel:45#, SUS304, SUS316
Brass/Copper:H59, C110
Plastic:POM, PA66, PEEK
Ti: TC4
- CNC Turning
- CNC Milling
- Drilling
- Tapping
- Sandblasting
- Anodizing
- Polishing
- Zinc/Nickel Plating
- Black Oxide
- Deburr








