The global transition towards electrification, spearheaded by electric vehicles (EVs) and grid-scale energy storage systems (BESS), has triggered an unprecedented evolution in structural and electrical fastening technology. In these high-voltage, high-vibration, and thermally dynamic environments, standard off-the-shelf fasteners fail to meet modern safety requirements. As a premier China battery bolts and nuts exporter, Beiersdorf Industrial Technology (Shanghai) Co., Ltd. is at the forefront of providing custom engineered fasteners designed specifically for electric powerhouses.
Battery bolts and nuts do not merely serve a mechanical purpose; they are core safety and conductivity interfaces. In battery packs, connections between cells, modules, and busbars must maintain a precise torque over long lifespans despite thermal fluctuations and vehicular vibrations. Failure in fastening tension leads to localized resistance increase, thermal runaway, or complete pack failure. Therefore, material choice, precision machining, and specialized surface coatings are critical parameter configurations.
Our factory has formulated the most stringent sampling and comprehensive testing inspection systems. Using automatic optical sorting and magnetic flux leakage test rigs, we aim to achieve zero defects for every batch leaving our facilities. This ensures perfect reliability in structural assembly.
Our engineering group holds over 100 utility model patents and eight core invention patents. Our ongoing development in high-strength, anti-corrosive, and insulated fasteners allows us to meet specific mechanical tolerances required by next-generation solid-state and cylindrical battery designs.
We manage an expansive catalog of nearly 100,000 product models. With over 500 tons of specialized raw materials in stock (including Super Stainless Steel, Titanium, and Nickel alloys) and 10,000 tons of finished stainless steel components, we guarantee rapid turnaround times for global buyers.
Established in 2015 in Shanghai, China, Beiersdorf is a leading manufacturer specializing in special fasteners and ultra-high precision components. Our foundational belief is simple: "Product quality is the foundation for an enterprise's survival." By combining technical expertise with a customer-centric outlook under the ethos of "Heart to sunshine, everything to prosperity", we deliver reliable fastening solutions to global new-energy developers, marine engineering complexes, and high-tech sectors.
From deep cryogenic applications to super-alloy systems functioning at 1200℃, our fasteners retain structural integrity without suffering catastrophic embrittlement or thermal relaxation.
Our ultra-high tensile fasteners are manufactured to endure high pretension loads, resisting shearing forces in heavy-duty battery module mountings and EV frames.
Including Inconel, Monel, Cobalt alloys, and customized lightweight titanium fasteners, providing non-magnetic properties and unmatched corrosion resistance.
Our marine engineering and shipbuilding fasteners comply with Classification Society specifications, ensuring resistance against salt spray and moisture exposure.
In designing modern lithium-ion and sodium-ion battery packs, two main challenges emerge: weight minimization and electrical safety. Copper and aluminum busbars carry high-amperage currents between cells, and the fasteners securing them must ensure continuous surface-to-surface contact without creating shorts. This has driven the industry toward the adoption of specialized plastic-molded fasteners and coated metal bolts.
Our range of lightweight plastic fasteners and epoxy-coated steel bolts provides electrical isolation up to several kilovolts, preventing stray currents from bypassing safety fuses. Concurrently, for structural pack frame assembly where immense shear resistance is necessary, our 1900 MPa high-tensile fasteners ensure that the structural integrity of the battery housing remains uncompromised, even during severe mechanical crashes or deceleration events.
Our custom classification society fasteners are used extensively in marine propulsion, offshore wind structures, yacht building, and underwater pipelines. Available materials include A4-80, A5-80, D8-80, D6-70, Duplex 2205, L7, and 40CrNiMoA alloys, ensuring long-term resilience against marine corrosion and high hydrostatic pressures.
Applied in thermal, nuclear, and renewable energy storage complexes. We supply high-temperature bolts capable of operating up to 1200℃ and specialized components designed for modern hydrogen systems, ensuring minimal gas leakage and structural fatigue under cycling temperatures.
High-speed trains experience sustained vibrations and dynamic mechanical forces. Our self-locking, high-tensile vibration-resistant fastening assemblies ensure the security of undercarriage systems, motor mountings, and onboard power distribution compartments.
Offering ultra-high precision machined parts and non-magnetic fasteners suitable for sensitive electronic assemblies, MRI medical devices, and semiconductor processing equipment, preventing magnetic interference and maintaining thermal dissipation paths.
Our fasteners are built to handle chemical exposures, acidic environments, and high-pressure processing lines, using nickel and cobalt alloys to prevent stress corrosion cracking (SCC) and hydrogen embrittlement.
Material selection depends on mechanical loading (tensile and shear stress), thermal environments (normal operating temperature vs. potential thermal runway peaks), and environmental exposure. For instance, non-magnetic stainless steel, copper, or titanium alloys prevent electromagnetic interference within high-current battery packs. Additionally, lightweight plastics or specialized insulating coatings are utilized when electrical isolation is required between live terminals and ground points.
Battery modules often bring dissimilar metals into contact, such as copper busbars, aluminum terminal plates, and steel fasteners, creating a risk for galvanic corrosion. We address this by applying customized surface coatings, such as electroplated Zinc-Nickel alloy, Geomet, PTFE, or custom Dacromet treatments. These act as physical and electrochemical barriers, reducing potential differences and preventing oxidation in humid or marine environments.
Advanced superconducting energy systems, liquefied gas storage facilities, and certain aerospace battery systems operate under extreme cold conditions. Regular carbon steels become brittle and shatter under load at these temperatures. Our specialized cryogenic fasteners maintain their ductility and mechanical properties down to -270℃, ensuring safety in advanced energy infrastructures.
When high electric currents pass through battery connectors and busbars, they generate local magnetic fields. If magnetic (ferrous) fasteners are used, they can experience inductive heating, causing localized hotspots and potential losses in torque due to thermal expansion. Using non-magnetic materials like Austenitic Stainless Steel, Titanium, or Brass eliminates this risk, protecting sensitive monitoring sensors (like BMS chips) from magnetic field disturbances.
Quality is managed through IATF 16949-compliant manufacturing processes. We employ advanced optical sorting machines, 3D coordinate measurement systems, spectral analyzers for raw material validation, and automatic thread checkers. Our Hash Detection inspection system validates structural integrity at the raw material, cold-forged, and post-surface-coated stages, ensuring traceably documented zero-defect batches.
Yes. We specialize in custom manufacturing, starting from initial design assistance and raw material selection to prototype engineering and mass production. Whether your battery module demands ultra-fine threads, specific shoulder configurations, or custom molded insulating hats, our R&D and precision machining facilities can supply parts matching your exact CAD specifications.
As the global industrial landscape transitions toward sustainability, the fastener industry is embracing green manufacturing methods, low-carbon materials, and lightweight designs to support carbon-reduction goals.
To better serve our expanding global customer base, we are implementing automated storage and retrieval systems (ASRS) to handle over 100,000 product variants, reducing packaging and dispatch times.
Since our establishment in 2015, we have worked to provide robust fastening solutions to automotive, energy, marine, and high-precision manufacturing industries around the world.
Beiersdorf is more than a parts manufacturer. We provide engineering consultation, material analysis, and installation support for new-energy and high-reliability fastening projects.
Need custom dimensions or specific alloys? Contact our technical team today.
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