The eye bolt DIN 444 form B is suitable for attaching hooks, shackles, bolts and rods or can be used as a guide element for ropes and cables. Eye bolts are available from the manufacturer mbo Osswald in steel, galvanized steel and stainless steel.

Eye bolts DIN 444 form B

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商品信息 "Eye bolts DIN 444 form B"

1. Product description

Eye bolts according to DIN 444 are high-quality fastening elements that have an eye (loop) on the screw head, which serves as a connection point for hooks, bolts, rods, ropes, cables, carabiners, shackles, and much more. Traditionally, these eye bolts are used in construction areas where a reliable and reusable fastening is needed. They are suitable for both static and dynamic loads and offer a secure connection option through the closed eye (loop). The round shape of the eye facilitates the hooking of various connection elements, making them a versatile choice for many construction and assembly tasks.

Eye bolts according to DIN 444 differ in form A, B, and C. - Form B has, however, crystallized as the standard, therefore we mainly offer form B and additionally form LB at mbo Osswald.

Eye bolts form B have a metric partial thread, which does NOT extend continuously to the eye/loop over the entire length of the screw to ensure a defined distance between the thread and the eye/loop.

In contrast, form LB offers a thread that extends over the entire length almost to the eye/loop.

Both forms, B and LB, are typically made from high-quality steel or stainless steel to ensure optimal durability and corrosion resistance. The choice of material depends on the specific requirements of the application, as well as the decision for a surface coating, which can offer additional protection against environmental influences. The standardized manufacturing according to DIN 444 ensures high quality and precise compatibility with other fastening and machine elements.

Features of eye bolts DIN 444 form A include a smaller eye diameter with a stronger eye.
The eye bolts form C differs from eye bolts form B by different shaft lengths.
In practice, mainly eye bolts DIN 1444 form B are used.

2. Product details

Size: M5x25 - M24x200

Material group: Steel strength class 4.6 (Alternatively, strength class 8.8 possible), Stainless steel

Surface: Steel: plain & galvanically zinc-plated white, Stainless steel: plain

Thread type: standard right-hand thread

d2 Hole diameter: 5 - 22

d3 Thread: M5 x 0,8 - M24 x 3

3. Application Areas & Compatibility

Mechanical and plant engineering: In these industries, eye bolts are used for fastening and positioning of machine components. Their robust construction ensures a reliable connection that is essential for the safety and efficiency of critical machine parts.

Architecture and construction sector: In the construction industry, eye bolts are excellently suited for the temporary or permanent connection of components. Their load capacity makes them a safe choice for the construction of support structures, roofs, and other critical building elements.

Stage and event technology: Eye bolts allow for flexible and secure suspension of stage equipment, lighting fixtures, and decorations. Their quick assembly and disassembly are particularly appreciated in the dynamic environment of events and performances.

Eye bolts can be combined with a variety of fastening elements such as hooks, carabiners, or ropes, enabling their application in diverse scenarios. Their modular nature supports the development of flexible and adaptable fastening and securing systems.

4. Advantages and Benefits

The main advantages of eye bolts DIN 444 form B and LB lie in their high load-bearing capacity and versatility. The precise manufacturing according to DIN standards promises consistently high quality and reliability. Their simple, yet effective design allows for quick assembly and disassembly, saving time and costs. In addition, the wide choice of sizes offers a flexible solution for many different requirements. By using high-quality materials, they are extremely durable and resistant to mechanical stresses as well as environmental influences, which extends their lifespan.

With their long service life and the reduction of maintenance requirements, eye bolts offer an economical solution compared to less robust fastening elements.

5. Assembly and Installation

Ensure that the selected eye bolts meet the requirements of the application, including load capacity, material (e.g., steel or stainless steel), and size, and that all required components are in a flawless condition. These include the eye bolts themselves, as well as suitable nuts, washers, and, if necessary, securing elements.

The eye bolt is inserted into the designated hole. The size of the pilot hole should be slightly smaller than the outer diameter of the threaded part of the eye bolt. Then, the eye bolt is tightened. Ensure to tighten the screws evenly to guarantee an even load distribution.

If necessary, locking nuts or other securing elements can be used to protect the bolts against unintentional loosening.

Regularly check the assembly to ensure that there is no loosening or damage. This is particularly important for applications that are exposed to increased loads or extreme environmental conditions.

6. Accessories and Extensions

Additional nuts DIN 934 or DIN 439, which are applied to the thread of the eye bolts, prevent unintentional loosening. Lock nuts or self-locking nuts offer additional security against vibrations.

Washer DIN 125 form A, which lies under the head of the eye bolt or under the nut, to distribute the load over a larger area and protect the surfaces from damage.

Clevises DIN 71752 / DIN ISO 8140 can be combined with eye bolts to create pivoting connections or connection points with freedom of movement. They are useful in mechanical arrangements that require some mobility or adjustability.

Frequently Asked Questions (FAQ)

What distinguishes eye bolts form B from form LB?

Eye bolts form B have a metric thread, which does NOT extend continuously to the eye/loop over the entire length of the screw, to ensure a defined distance between the thread and the eye/loop. Form LB, on the other hand, has a thread that extends over the entire length almost to the eye/loop.

What are the main advantages of eye bolts DIN 444?

The main advantages are their high load capacity, versatility, precise manufacturing according to DIN standard for high quality and reliability, as well as their easy assembly and disassembly.

What are the main advantages of eye bolts form B?

The defined distance between the thread and the connection point at the eye offers the advantage of a faster assembly possibility.
Optical aspects can also be a reason for using form B, for example, when the area without a thread remains visible in architectural applications.

What are the main advantages of eye bolts form LB?

Due to the longer thread, form LB offers a deeper screwing-in option than form B, providing more flexibility.

What materials are eye bolts DIN 444 typically made of?

They are typically made of high-quality steel or stainless steel to ensure optimal durability and corrosion resistance.

For which application areas are eye bolts particularly suitable?

They are used in mechanical and plant engineering, in the architectural and construction sectors, as well as in stage and event technology.

What sizes of eye bolts are available?

The available sizes range from M5x25 to M24x200.

How is unintentional loosening of eye bolts prevented?

This can be achieved by using additional nuts DIN 934 or DIN 439 and lock nuts or self-locking nuts which offer additional security against vibrations.

Why is checking the assembly of eye bolts important?

Regular checks are important to ensure that there is no loosening or damage, especially in applications under increased loading or extreme environmental conditions.

What other elements can eye bolts be combined with to extend their functionality?

They can be combined with clevises DIN 71752 / DIN ISO 8140 to create pivoting connections or connection points with freedom of movement.

What role does material choice play in the application of eye bolts in certain environments?

The choice of material is crucial, as it determines the corrosion resistance and thus the durability and safety of the connection in the desired application.

How does surface coating affect the properties of eye bolts?

A surface coating, such as galvanic zinc plating, can provide additional protection against environmental influences, thereby extending the corrosion resistance and life span of eye bolts.

How is the correct load capacity of eye bolts determined for specific applications?

The load capacity is determined by factors such as the material, size, and thread of the eye bolt as well as the type of load (static or dynamic).
An important factor for the load capacity is the strength class. This determines the tensile strength and the yield strength. For steel eye bolts, the strength class 4.6 is available as an alternative to the strength class 8.8.

Can eye bolts be used for outdoor applications, and what precautions should be taken?

Yes, they can be used for outdoor applications, especially if they are made of stainless steel, which has higher corrosion resistance. It is important to select the right material for the specific environment (e.g., salty or chemical atmospheres) and to perform regular inspections to detect corrosion early.

Can eye bolts be reused, and if so, under what conditions?

Eye bolts can be reused in many cases, provided they show no signs of wear, deformation, or corrosion. However, any reuse should include a careful inspection and assessment of the bolt to ensure it meets the requirements of the new application.

What is the difference between eye bolts DIN 444 and ring bolts DIN 580?

In summary, the main difference between eye bolts DIN 444 and ring bolts DIN 580 lies in their design and specific area of application:
Eye bolts DIN 444 are primarily used for guiding or securing loads in the direction of the bolt axis. They are designed for fixings where the load mainly acts in one direction.
Ring bolts DIN 580 are particularly suitable for applications in the lifting equipment area, where loads can act from various directions. They are optimized to absorb multidirectional forces.

What is the difference between eye bolts DIN 444 and commercial screws?

Eye bolts DIN 444 have an eye/loop for passing through fastening elements and are designed for carrying, guiding, or lifting loads. On the other hand, standard screws are primarily for connecting materials by screwing into a thread without the additional load-bearing function. The essential difference lies in the special function and design of the screw heads.

Are custom-sized eye bolts also manufactured?

Yes, at mbo Oßwald, individual customization of eye bolts according to your wishes is possible. If a DIN-compliant eye bolt does not meet your specific requirements, we offer you custom-made special parts. We develop the required component especially for your application or manufacture according to your drawing, referring to the extensive material selection of our standard parts. We are able to make and implement almost any constructive change.
If you already have a drawing of your desired part or want to develop a solution together with us, do not hesitate to contact mbo Oßwald directly. We are ready to turn your ideas into reality.