304 German Standard Swivel Eye DIN444 Stainless Steel Swivel Eye Screws Bolts M6-M24 Custom Products

About Product

The 304 German Standard Swivel Eye DIN444 Stainless Steel Bolt is a specialized fastening component designed for applications requiring a combination of threaded connection and pivoting attachment capability. This product conforms to DIN444, a German industrial standard that specifies the dimensions, tolerances, and performance requirements for eye bolts with a swivel or rotating eye feature. The DIN444 designation indicates that these bolts are manufactured to established European engineering standards, providing a level of design consistency and interchangeability that supports international procurement and equipment maintenance.

The defining feature of this product is the swivel eye design. The eye, or ring, at the top of the bolt is not fixed in a single orientation but is capable of rotating relative to the threaded shank. This rotational freedom allows the bolt to accommodate angular misalignment between the mounting point and the connected component. In lifting applications, this feature helps ensure that the load is applied along the axis of the bolt thread, reducing bending moments that could compromise fastener integrity. In securing and connecting applications, the swivel eye allows for easy attachment of cables, chains, rods, or hooks, with the ring positioning itself to the most favorable orientation as the connection is made.

The material specification is 304 stainless steel, an austenitic chromium-nickel alloy that offers a combination of mechanical strength and resistance to atmospheric corrosion. This material is suitable for applications in humid environments, food processing areas, and marine conditions. The surface treatment is a zinc coating, applied to provide an additional layer of protection against surface corrosion. The combination of stainless steel substrate and zinc coating offers dual protection for applications where extended service life is a consideration.

The product range covers metric thread sizes from M6 through M24, addressing a wide spectrum of fastening requirements from light-duty to heavy-duty applications. The length options range from 20mm to 90mm, providing selection based on the thickness of the components being secured. Custom sizing is available for applications requiring specific dimensions outside the standard range. The ISO certification indicates that the manufacturing process follows international standards for quality management, providing documented traceability of production standards.

Key Advantages

• Swivel Eye Functionality for Versatile Mounting: The rotating eye design accommodates angular adjustments during installation, allowing the bolt to adapt to the specific geometry of the mounting interface. This feature is particularly valuable when connecting to cables, chains, or rods where the load direction may vary. The swivel action helps align the threaded shank with the load path, supporting proper load distribution and reducing stress concentrations at the thread-root interface. This adaptability also simplifies installation in tight spaces where precise alignment of a fixed eye would be difficult.
  
  

• DIN444 Standard Compliance and ISO Quality Assurance: Manufacture to the DIN444 standard provides assurance of dimensional consistency and design integrity. This standard specifies critical parameters including thread dimensions, eye diameter, and overall length tolerances. The ISO certification provides documented evidence that quality management practices are in place throughout the production process. For customers specifying components for equipment that must meet European or international standards, the DIN444 compliance supports regulatory and engineering requirements.
  
  

• Corrosion-Resistant Material with Zinc Coating: The 304 stainless steel substrate offers inherent resistance to rust and surface corrosion in atmospheric conditions. The additional zinc coating provides a sacrificial layer that helps protect the base material in more demanding environments. This dual protection is particularly relevant for applications in food processing facilities, marine environments, and outdoor equipment where moisture exposure is routine. The material combination supports longer service intervals and consistent visual appearance in visible installations.
  
  

• Comprehensive Size and Customization Options: The M6 through M24 size range covers commonly specified metric diameters for equipment assembly and structural mounting. The 20mm to 90mm length options provide flexibility in accommodating different material thicknesses. The custom sizing capability allows for specifications outside standard dimensions, supporting original equipment manufacturers and retrofit projects where off-the-shelf hardware does not meet requirements. This flexibility reduces the need for additional sourcing from multiple suppliers.
  
  

The versatility of the 304 German Standard Swivel Eye DIN444 Stainless Steel Bolt makes it applicable across a broad range of industrial sectors. The following examples illustrate how this product is used in different operational environments:

• Food and Medical-Grade Equipment: In the food processing industry, swivel eye bolts are used for securing covers, access panels, and tensioning mechanisms on equipment where hygiene standards are important. The corrosion-resistant 304 stainless steel construction supports washdown requirements and the zinc coating provides additional surface protection. The swivel eye design facilitates quick attachment and release of safety cables or restraint chains on equipment requiring routine access for cleaning. Medical apparatus manufacturing uses these bolts for equipment frames and adjustment mechanisms where the material's non-magnetic property and corrosion resistance are operationally relevant. Packaging machinery incorporates swivel eye bolts in film guiding systems, tensioning assemblies, and access panel securing applications, where the rotating eye simplifies attachment to various mounting points at different angles.
  
  

• Industrial Automation and Conveyor Systems: Within the conveying equipment sector, these bolts are used for connecting tensioning devices, securing guard rail mounts, and anchoring cable systems. The swivel eye allows for alignment with cable or rod attachments at varying angles, simplifying installation and adjustment of conveyor systems. The machinery for canning sector uses these bolts in quick-release access panels and equipment covers where maintenance access is required during production changeovers. As machine parts, these swivel eye bolts serve as standard hardware components for lifting points, tie-down anchors, and connection interfaces on various industrial equipment types, supporting maintenance, relocation, and equipment servicing operations.
  
  

• Heavy Industry and Specialized Environment Equipment: In chemical equipment installations, swivel eye bolts are specified for lifting lug attachments, cable anchoring systems, and equipment tie-down applications. The corrosion-resistant material options support long-term service in environments with chemical exposure. Ship manufacturing uses these bolts extensively for securing deck equipment, cable and chain anchoring, and lifting point applications. The combination of corrosion resistance and swivel functionality supports the demands of marine conditions and the need for flexible attachment methods. The water treatment industry applies these bolts in equipment hoisting and positioning applications, securing access covers and pipe supports, and anchoring cable-guided equipment. The swivel eye design simplifies attachment to various lifting devices and structural mounting points in treatment facilities with varying alignment requirements. The ISO certification and DIN444 compliance provide documented quality assurance for engineering specifications in these critical infrastructure applications.