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Clips & Fasteners

Custom Flat Springs & Plate Springs

Custom-made flat or plate springs tailored to your specific specifications. Discover Filame's deep expertise, production capabilities, sector expertise, materials and finishings.

Flat springs / plate springs come in an infinite range of configurations.Given that the spring is a steel quality and not a shape, our only limit is the thickness and width of the material.

We manufacture flat springs in all dimensions and qualities from 0.15 to 6 mm in thickness in small, medium or large series.

We work the spring strips in a semi-hard state (annealed-hardened steel) possibly with heat treatment after they have been shaped (hardened + tempered). We can also work directly with hardened steel if the part’s geometry allows.We also work with spring-quality stainless steel (inox 301) in various hardnesses (rm 1100-1300, rm 1300-1500, rm 1500-1700).

Technical Specs

  • Thickness from 0.15 mm to 6.0 mm
  • Precision stamping and forming
  • Bespoke geometries according to design
  • Heat treatment for optimal spring properties (hardening/tempering)

Materials & Standards

  • Spring steel (XC75, XC80, XC100)
  • Stainless steel (301, 304, 316)
  • Phosphor bronze, beryllium copper
  • Inconel and high-temp alloys

Worked Steels

  • Spring steel XC75, XC80, XC100
  • Inox 301 (E1 to E6)
  • Inox 304, 316
  • Phosphor bronze, beryllium
  • Copper, brass …
  • Inconel
  • …

Finishings

  • Oiling
  • Zinc plating
  • Epoxy coating
  • Cataphoresis
  • Teflon © coating
  • Geomet © coating
  • Passivation
  • Phosphate treatment
  • Marking
  • Ultrasonic cleaning
  • Microbillage
  • Tribofinition
  • Ebavurage
  • Grenaillage
  • Unit packaging in sachets, etc.

Product samples

Industries we serve

The Filame Group manufactures precision components for a wide range of industries. Discover the main sectors we serve:

We also serve many other sectors. For more details on all of our industry services, visit our Industries & customers page, or contact us for any custom requests.

Technical Documentation

Questions & Answers

01 What are flat springs used for ?
Flat springs are used in a wide range of applications including electrical contacts, tensioning devices, leaf springs for automotive, and various clamping mechanisms in industrial machinery.
02 Can you help with the design of a custom flat spring ?
Yes, our engineering team can assist in the design and material selection to ensure the flat spring meets your required tension, durability, and space constraints.
03 What materials are best for high-temperature flat springs ?
For high-temperature environments, we recommend high-performance alloys such as Inconel X750, which maintain their spring properties even at extreme temperatures.
04 Do you offer prototyping for flat springs ?
Yes, we can produce prototypes using laser cutting or manual forming before moving to full-scale production with dedicated stamping tools.
05 How does Filame ensure the quality and compliance of its products ?
Filame is ISO 9001 certified and operates in accordance with IATF 16949 requirements. We utilize advanced automated optical inspection (AOI) systems for 100% dimensional compliance and routinely provide full EN 10204 3.1 material certifications and PPAP Level 3 documentation.
06 Can Filame assist in the engineering, design, and prototyping phase ?
Yes. Our in-house engineering design studio collaborates directly with your R&D teams to co-design progressive dies and optimize part geometries for cost-efficient mass production. We also utilize advanced 3D printing to quickly manufacture prototypes, assembly jigs, and custom verification fixtures.
07 Which industries does Filame primarily manufacture components for ?
We manufacture high-precision components for demanding sectors worldwide, including the Automotive, Aerospace, Medical & Pharmaceutical, Defense, Nuclear, Civil Engineering, Construction, and Locksmith industries.
08 What manufacturing machinery does Filame utilize for production ?
Our state-of-the-art Nivelles facility features high-speed automatic mechanical presses (with multi-step progressive tooling), stand-alone mechanical presses, hydraulic presses, Bihler multi-slide machines, CNC 2D/3D wire formers, laser-cutting/punching machines, and automated welding robots.
09 What are Filame's shipping capabilities and delivery times across Europe ?
Headquartered in Nivelles, Belgium, at the geographic heart of Europe, Filame provides robust logistics with rapid shipping across all major European countries—including Germany, France, the Netherlands, Luxembourg, and beyond—with transit times typically between 24 and 48 hours once production is completed.
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