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Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Aug. 28, 2026

Power Conversion Fasteners for Advanced Power Electronics

Power conversion is becoming increasingly important as industries move toward electrification, higher power density and more efficient energy systems.

Modern electrical architectures increasingly rely on technologies such as:

  • AC-DC converters

  • DC-DC converters

  • UPS systems

  • Power supply units

  • Battery backup systems

  • Solid-state transformers

  • SiC power modules

  • High-voltage power electronics

  • Energy storage systems

These systems combine semiconductor devices, electrical connections, thermal-management components and mechanical structures within increasingly compact equipment.

The mechanical fastening system must therefore provide reliable connections between housings, heat sinks, cooling assemblies, electrical covers, brackets and structural components.

JUXIN supplies industrial fasteners for power electronics and power conversion equipment, including precision screws, custom bolts, self-clinching nuts, self-clinching studs, rivet nuts, 

thread insert nuts, weld nuts, CNC machined components, high-strength fasteners, stainless steel fasteners and locking nuts.

Our OEM manufacturing process supports drawing-based projects from engineering review through production, inspection and export packaging.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Fasteners for AC-DC Power Supplies

AC-DC converters transform alternating current into direct current for a wide range of electrical and electronic systems.

They are used in:

  • Data center power systems

  • Industrial power supplies

  • Telecom equipment

  • Automation systems

  • Battery charging equipment

  • Power electronics

  • Embedded power systems

  • Electrical equipment

Mechanical construction typically includes an enclosure, internal circuit boards, power modules, heat sinks, cooling structures and mounting brackets.

AC-DC converter fasteners can therefore be used for multiple mechanical interfaces.

Power Supply Housing Fasteners

Power supply housings require secure mechanical connections while allowing access for assembly, inspection and service.

Fasteners can be used for:

  • Power supply covers

  • Enclosure panels

  • Internal brackets

  • Mounting structures

  • Cooling assemblies

  • Electrical shields

  • PCB support structures

Depending on the enclosure design, self-clinching fasteners, rivet nuts, screws, bolts and other threaded components can provide integrated attachment points.

Heat Sink Fasteners

Thermal management is a major consideration in high-power AC-DC conversion.

Heat sink fasteners can secure heat sinks and related thermal-management components to the mechanical structure.

The fastening design should consider:

  • Available installation space

  • Component geometry

  • Required clamping force

  • Thread size

  • Material compatibility

  • Assembly process

  • Service requirements

For precision power electronics assemblies, consistent dimensions and repeatable fastening performance are important to maintain controlled mechanical interfaces.

Fasteners for DC-DC Converters

DC-DC converters are used to convert one DC voltage level to another and are widely deployed in data centers, EV systems, battery systems, industrial equipment and power electronics.

A DC-DC converter may contain:

  • Power semiconductor modules

  • Inductors and transformers

  • Heat sinks

  • Cooling plates

  • Electrical shielding

  • Circuit boards

  • Mechanical brackets

  • Enclosures

This creates multiple fastening requirements within a compact assembly.

DC-DC Converter Housing Fasteners

The converter housing must protect internal components while maintaining structural integrity.

DC-DC converter fasteners can be used for:

  • Housing covers

  • Internal mounting structures

  • PCB supports

  • Electrical shields

  • Cable brackets

  • Heat sink assemblies

  • Cooling plates

Where the enclosure uses thin sheet metal, self-clinching nuts and rivet nuts can create threaded attachment points without requiring conventional loose nuts.

Power Module Fasteners

Power modules may operate under significant thermal and electrical loads.

Mechanical fastening may be required for:

  • Power module mounting

  • Heat sinks

  • Cooling plates

  • Busbar support structures

  • Brackets

  • Protective covers

Fastener selection should be coordinated with the module manufacturer’s mechanical and thermal requirements.

Fasteners for UPS Systems

Uninterruptible power supply (UPS) systems provide backup power and power-conditioning functions for critical electrical infrastructure.

UPS equipment is used across:

  • AI and data center infrastructure

  • Telecommunications

  • Industrial automation

  • Healthcare equipment

  • Manufacturing facilities

  • Commercial infrastructure

  • Energy systems

A UPS system can contain batteries, power electronics, cooling systems, control electronics and structural enclosures.

This creates a broad range of mechanical fastening requirements.

UPS Enclosure Fasteners

UPS cabinets and enclosures may require fastening for:

  • Access panels

  • Electrical covers

  • Internal brackets

  • Control panels

  • Power electronics

  • Cooling assemblies

  • Structural frames

For sheet-metal UPS cabinets, integrated fastening solutions can help simplify production assembly.

Battery Cabinet Fasteners

Battery cabinets must accommodate battery modules, electrical connections, support structures and service access.

Battery cabinet fasteners can be used for:

  • Battery mounting structures

  • Internal brackets

  • Access panels

  • Cable-management components

  • Electrical protection structures

  • Cabinet frames

Where battery assemblies require regular inspection or replacement, removable threaded connections can be especially important.

Fasteners for SiC Power Electronics

Silicon carbide (SiC) power devices are increasingly used in high-efficiency power conversion applications because of their suitability for high-voltage, high-frequency and high-temperature power electronics.

Potential applications include:

  • Data center UPS systems

  • EV power electronics

  • Solar inverters

  • Energy storage systems

  • Industrial power conversion

  • High-voltage power systems

  • Solid-state transformer architectures

The use of advanced semiconductor technology can increase power density and place greater demands on thermal-management and mechanical packaging.

Fasteners may therefore be required for:

  • SiC power modules

  • Heat sinks

  • Cooling plates

  • Busbar structures

  • Module housings

  • Electrical shielding

  • Mounting brackets

  • Thermal-management assemblies

For these applications, engineers should evaluate fastening requirements together with the complete mechanical and thermal design.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Fasteners for Solid-State Transformers

Solid-state transformers (SSTs) use power semiconductor technology and high-frequency power conversion to perform voltage transformation and power management.

Compared with conventional transformer architectures, SST systems can integrate multiple power conversion stages, semiconductor modules, control electronics and advanced thermal-management structures.

This creates complex mechanical requirements.

Solid-state transformer fasteners may be required for:

  • Power semiconductor modules

  • Converter housings

  • High-voltage components

  • Cooling assemblies

  • Heat sinks

  • Structural frames

  • Electrical enclosures

  • Internal mounting systems

  • Control electronics

For OEM developers, the fastening system must fit within the overall electrical, thermal and mechanical architecture.

Mechanical Fastening for High-Power Electronics

As power density increases, mechanical design becomes more closely integrated with electrical and thermal engineering.

A typical high-power conversion system can be viewed as:

Power Semiconductor → Thermal Management → Mechanical Structure → Electrical Enclosure

Every interface can create a fastening requirement.

For example:

Power module → Cooling plate → Mounting structure

may require precision screws or custom fasteners.

At the enclosure level:

Sheet-metal panel → Threaded attachment point → Equipment cover

may require self-clinching nuts or rivet nuts.

For structural components:

Frame → Bracket → Equipment assembly

may require bolts, screws or custom CNC machined components.

This is why fastener selection should be considered during mechanical design rather than only during final procurement.

Precision Screws for Power Electronics

Precision screws can be used where controlled geometry and consistent assembly are required.

Applications include:

  • Power modules

  • Heat sinks

  • Cooling plates

  • PCB mounting structures

  • Electrical shields

  • Converter housings

  • Internal brackets

For precision power electronics, dimensional consistency can be important because variations in fastener geometry can affect component fit and assembly repeatability.

JUXIN can manufacture screws according to specified dimensions, thread configurations, materials and surface treatments.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

High-Strength Bolts for Power Equipment

Heavy-duty power conversion systems and supporting structures may require high-strength bolts for structural connections.

Potential applications include:

  • Equipment frames

  • Heavy power cabinets

  • Cooling equipment

  • Transformer structures

  • Mounting frames

  • Industrial power equipment

JUXIN supplies high-strength fastening solutions according to customer specifications.

The appropriate grade, material, dimensions and surface treatment should be selected according to the engineering requirements of the application.

Self-Clinching Fasteners for Power Electronics Enclosures

Self-clinching nuts and studs provide integrated fastening points in sheet-metal components.

They can be useful for:

  • Power supply housings

  • Converter enclosures

  • UPS cabinets

  • Electrical panels

  • Control cabinets

  • Cooling equipment

  • Internal brackets

The main advantage is that the threaded fastener becomes mechanically retained in the sheet metal, eliminating the need to handle a loose nut during final assembly.

This can be particularly useful for high-volume OEM production where assembly repeatability and accessibility are important.

Rivet Nuts and Thread Inserts for Power Equipment

Rivet nuts and thread insert nuts can provide internal threads in applications where conventional tapped threads are not practical.

They can be used for:

  • Thin-wall power supply housings

  • UPS enclosures

  • Converter cabinets

  • Removable panels

  • Electrical covers

  • Cooling system brackets

  • Service access structures

For maintenance-intensive equipment, removable threaded connections can allow covers and components to be repeatedly removed and reinstalled.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

CNC Machined Components for Power Conversion Systems

Advanced power conversion equipment may require more than standard fastening hardware.

CNC machined components can provide precision mechanical interfaces for:

  • Spacers

  • Pins

  • Bushings

  • Mounting components

  • Precision brackets

  • Heat sink interfaces

  • Custom mechanical structures

CNC machining can complement standard fasteners when an assembly requires precise dimensional control or a non-standard mechanical geometry.

JUXIN can support OEM projects requiring both fastening products and custom machined components.

Stainless Steel Fasteners for Power Electronics

Stainless steel fasteners may be selected for applications where corrosion resistance and environmental durability are important.

Potential applications include:

  • Outdoor power equipment

  • Renewable energy systems

  • Industrial electrical equipment

  • Energy storage systems

  • Cooling equipment

  • Power conversion cabinets

Material selection should consider the operating environment, mechanical requirements and compatibility with the mating materials.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Locking Fasteners for Vibration-Prone Power Equipment

Power conversion equipment can contain fans, pumps, cooling systems and other components that generate vibration.

Where vibration resistance is a design requirement, locking nuts and other locking fastener solutions can be considered.

Applications may include:

  • Cooling assemblies

  • Pump structures

  • Fan assemblies

  • Power equipment frames

  • Industrial electrical equipment

The appropriate locking method should be selected according to the vibration environment, joint design and required serviceability.

Fastener Selection for Power Conversion Equipment

Engineers and procurement teams should evaluate several factors when specifying power electronics fasteners.

Mechanical Load

Determine the required tensile, shear and clamping performance of the joint.

Thermal Environment

Fasteners installed near power semiconductor modules, heat sinks or cooling systems may experience elevated operating temperatures.

Material Compatibility

The fastener material should be compatible with the mating components and environmental requirements.

Sheet-Metal Thickness

For self-clinching fasteners and rivet nuts, base-material thickness and hole geometry are important design parameters.

Assembly Method

Consider whether the component will be assembled manually, semi-automatically or through a high-volume production process.

Serviceability

UPS systems, power supplies and other critical equipment may require regular inspection or component replacement.

A removable threaded connection can therefore be preferable to a permanent joining method in serviceable areas.

Surface Treatment

Surface treatment may be specified according to corrosion resistance, environmental conditions and customer requirements.

JUXIN supports finishing options including zinc plating, zinc-nickel plating and zinc-aluminum flake coatings for applicable products.

JUXIN OEM Manufacturing for Power Electronics

JUXIN supports OEM manufacturers developing power conversion and electrical equipment.

Our product range includes:

  • Precision screws

  • Custom bolts

  • Self-clinching nuts

  • Self-clinching studs

  • Rivet nuts

  • Thread insert nuts

  • Weld nuts

  • Weld studs

  • CNC machined components

  • High-strength fasteners

  • Stainless steel fasteners

  • Locking nuts

Our manufacturing capabilities include:

  • Cold forging

  • Screw heading

  • Stamping

  • CNC machining

  • Injection molding

  • Secondary machining

  • Surface treatment

  • Dimensional inspection

This allows customers to source different fastening and precision mechanical requirements through one industrial OEM supplier.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

From Engineering Drawing to Mass Production

For power electronics manufacturers, fastener sourcing often begins with an engineering drawing rather than a standard catalog number.

JUXIN supports an OEM workflow covering:

Drawing → Engineering Review → Prototype → Sample Approval → Mass Production → Inspection → Export Packaging

During engineering review, key specifications can include:

  • Material

  • Thread type

  • Thread size

  • Overall dimensions

  • Sheet thickness

  • Installation method

  • Surface treatment

  • Mechanical requirements

  • Inspection criteria

  • Packaging requirements

This process helps align the fastener specification with the actual mechanical requirements of the equipment.

Industries Using Power Conversion Fasteners

JUXIN fastening solutions can support a range of industries where power conversion and high-density electrical systems are used.

AI Data Centers

UPS systems, power supplies, DC power architectures, cooling equipment and electrical cabinets.

Electric Vehicles

DC-DC converters, onboard chargers, power electronics, battery systems and thermal-management assemblies.

Energy Storage

Battery energy storage systems, power conversion systems, battery cabinets and electrical enclosures.

Renewable Energy

Solar inverters, energy conversion equipment and power distribution systems.

Industrial Electrification

Industrial power supplies, motor drives, converters and electrical control equipment.

Telecommunications

Telecom power systems, backup power equipment and equipment enclosures.

Semiconductor Equipment

High-precision power supplies, control systems and thermal-management equipment.

Power Grid and Electrical Infrastructure

High-voltage power electronics, electrical cabinets, conversion equipment and emerging solid-state transformer systems.

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Why Choose JUXIN for Power Electronics Fasteners?

For procurement and supply-chain managers, a suitable fastener supplier must support more than individual component sourcing.

JUXIN provides:

OEM Manufacturing
Custom fasteners and precision components produced according to customer drawings and specifications.

Engineering Review
Technical evaluation of materials, dimensions, threads, installation methods and application requirements.

Multiple Manufacturing Processes
Cold forging, screw heading, stamping and CNC machining capabilities.

Integrated Product Range
Fasteners, threaded inserts, weld components and CNC machined parts from one supplier.

Surface Treatment Options
Finishing solutions for specified corrosion and environmental requirements.

Quality Control
Dimensional and functional inspection according to product and customer requirements.

International OEM Supply
Industrial fastener supply for international equipment manufacturers and engineering applications.

Request a Fastener Solution for Your Power Conversion System

Whether you are developing an AC-DC power supply, DC-DC converter, UPS system, SiC power module, solid-state transformer, energy storage system or high-power electrical equipment,

 the fastening system should be evaluated as part of the complete mechanical design.

JUXIN can review your drawings, specifications or RFQ requirements and help identify suitable:

  • Precision screws

  • Custom bolts

  • Self-clinching fasteners

  • Rivet nuts

  • Thread inserts

  • Weld nuts

  • High-strength fasteners

  • Stainless steel fasteners

  • Locking nuts

  • CNC machined components

Send your technical drawings or RFQ requirements to:

info@juxinfasteners.com

JUXIN — Industrial Fasteners and Custom Components for Power Electronics and OEM Equipment

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems

Frequently Asked Questions

What fasteners are used in power electronics?

Power electronics equipment can use precision screws, bolts, self-clinching nuts, rivet nuts, threaded inserts, weld nuts and other custom fastening components. 

The appropriate solution depends on the equipment structure, material, load, thermal environment and assembly method.

What fasteners are suitable for UPS systems?

UPS equipment can use self-clinching fasteners, rivet nuts, screws, bolts, weld nuts and custom components for cabinets, battery structures, power electronics, cooling systems and internal brackets.

What fasteners are used for AC-DC converters?

AC-DC converters may require screws, self-clinching nuts, rivet nuts and custom fasteners for housings, heat sinks, cooling systems, PCB structures, electrical shields and mounting brackets.

What fasteners are used for DC-DC converters?

DC-DC converter assemblies can use precision screws, self-clinching fasteners, thread inserts and custom components for converter housings, power modules, cooling plates, heat sinks and mounting structures.

Can JUXIN supply fasteners for SiC power modules?

Yes. JUXIN can supply precision fastening components for power electronics assemblies, including screws, bolts, self-clinching fasteners, threaded inserts and CNC machined components. 

Final selection should be based on the module manufacturer's mechanical requirements.

Can JUXIN manufacture custom power electronics fasteners?

Yes. JUXIN supports drawing-based OEM manufacturing for custom screws, bolts, threaded fasteners, inserts and precision CNC machined components.

Can JUXIN supply fasteners for solid-state transformer equipment?

Yes. JUXIN can support mechanical fastening requirements for power conversion equipment, electrical enclosures, cooling structures, mounting systems and other SST-related assemblies.

What information should be included in an RFQ?

Useful information includes engineering drawings, material, thread specification, dimensions, surface treatment, estimated annual quantity, inspection requirements and packaging specifications.

Contact JUXIN

For power electronics fasteners, UPS fasteners, AC-DC converter fasteners, DC-DC converter fasteners, SiC module fasteners, solid-state transformer fasteners and custom OEM fastening solutions, contact:

info@juxinfasteners.com

Fasteners for UPS, AC-DC, DC-DC and Solid-State Transformer Systems


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