Case study

With years of experience and proven technology in the production of special fasteners, we have delivered components for the most complex technological and construction projects, while also solving various problems that engineers and designers face. When high strength is required, coupled with convenient assembly or high corrosion resistance, we always strive to support our clients by offering unconventional yet effective solutions.

Here are some of the most notable projects from across several decades of our operations, which required the greatest commitment from us:

  • Production of high-strength, acid-resistant special screws for the assembly of portholes on the passenger ship RMS Queen Mary 2. This solution allowed for the replacement of traditional steel screws with safe stainless steel screws, extending the lifespan of the entire assembled element.
  • High-strength, stainless steel special structural bolts for the assembly of the façade of the Metropolitan building at Piłsudski Square in Warsaw, designed by the world-renowned architect Sir Norman Foster.
  • Long-term cooperation with H. Cegielski Poznań S.A. ship engine factory—serving as the main supplier of fasteners for the assembly of one of the world’s most durable marine engines.
  • Through regular collaboration with a specialized Dutch fastener supplier industry, we consistently deliver special screws for assembling equipment on ships laying underwater pipelines, offshore extraction platforms, and pressure vessels.
  • With support from material science and additional mechanical capabilities linked to the hydrostatic material improvement process by the High Pressure Institute of the Polish Academy of Sciences, we developed a special manufacturing technology for austenitic screws dedicated to assembly in the unique research structure of CERN, the European Organization for Nuclear Research, located in Switzerland—the world’s largest particle accelerator, the Large Hadron Collider. The special requirement for these screws was high strength (class 10.9) and limited magnetism.
  • When the Koninklijke Marine, the Royal Dutch Navy, was repairing its submarines, only our products could meet their stringent requirements. We produced a series of nuts in a wide dimensional range from specially improved brass alloys, achieving test load results at the standardized class 8 strength level.
  • In the Polish market, we have an ongoing partnership with internationally successful companies in the machinery industry, such as TB Hydro, which designs and manufactures specialized technical valves and equipment for the hydropower and heating sectors, often installed in unusual, oversized sizes. For a hydroelectric plant in the Austrian Alps, we produced a full series of M140 threaded bolts for ball valve installations.
  • On commission from a Dutch partner, we manufactured screws for elements of the world’s largest chip printer by ASML. In this project, the key requirement was the combination of small-sized, non-magnetic stainless steel screws of strength class 12.9 while eliminating the risk of their seizing during repeated adjustments. These conditions were met through the use of hydrostatically extruded nanostructural material.