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Phones and computers

Nuts, pins and case fittings we have made for phones and computers. Our parts are in the OPPO and vivo supply chains.

Data revised Notes

Requirements and practice

Typical parts

  • Nuts for phones and laptops
  • Computer case and speaker cabinet fittings
  • Pins and plug parts
  • F connectors

Processes used

  • Shafts, sleeves, flanges and fittings, turned on CNC lathes. Example: a worm with a Ø2 mm bore held to 0.01 mm.
    Best tolerance±0.01 mmNote 1Conditionsmany features, not only hole positions; measured hole positions are typically 0.02 mmBest tolerance±0.01 mmBasisDeclaredAs ofSourceOwner, 2026-11How we label numbers

Related case studies

A selected project

Customer not named · name withheld

Key dimensions, largest deviation 0.01 mm

Problem
A very small part, with the key dimensions held to ±0.02 mm.
Approach
The pin is turned in house and gold plated by a partner. Every lot is released through outgoing inspection.
0.01 mmSource: Key-dimension deviationKey-dimension deviation0.01 mmBasisMeasuredLimit0.02 mm · Tolerance in the inspection report: ±0.02 mm on the key dimensionsDefinitionLargest gap between a micrometer reading and nominal on the key dimensions, tolerance ±0.02 mm, over 20 readingsAs ofSample size20 readingsSourceOutgoing inspection report, Oct 2026Ask for this recordHow we label numbersKey-dimension deviation
of 0.02 mm allowed · n = 20 readings

Notes and sources

  1. Best tolerance (many features, not only hole positions; measured hole positions are typically 0.02 mm): ±0.01 mm. Source: Owner, 2026-11; as of 6 November 2026.
  2. Key-dimension deviation: 0.01 mm. Source: Outgoing inspection report, Oct 2026; as of 29 October 2026.

Data revised

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