Torx Flanged Screws

Machines used in agriculture and earthmoving operate under harsh conditions. Dust, mud, chemicals, moisture and intense mechanical stresses are the order of the day. For this reason, choosing appropriate fastening components is critical to ensure operational safety, machine durability, and reduced maintenance costs.

Torx-headed flanged screws, such as those supplied by EFS to a design for a major industry customer, meet these requirements perfectly, thanks to a combination of technical features designed to ensure high performance in even the heaviest applications.

Why do screws for the agricultural sector need to perform so well?

• Mechanical strength: agricultural machinery is subjected to heavy and continuous loads. The fastening components used must withstand both static and dynamic stresses without deforming or giving way.
• Vibration resistance: use on rough and uneven terrain generates constant vibration. These, if not properly counteracted, can lead to loosening of fasteners and mechanical failure.
• Durability: exposure to weather, chemical fertilizers and dust requires the use of protective treatments and high-performance materials on components, which is useful to prevent corrosion and prolong their life.

Let’s look at the technical characteristics of a screw provided by EFS for these applications

Torx screw with smooth flange M16 x 65, fine pitch, class 12.9
The flanged Torx head screw has many advantages.

First, it has a greater ability to transmit high torques without damage due to the large contact surface area between the tool and head.

It also has high resistance to wear and tear during frequent assembly and disassembly.

Finally, its design enables self-centering of the tool, facilitating quick operations even when visibility is poor or there is residue.

Integrated smooth flange
The presence of the smooth flange eliminates the need for additional washers. This solution makes it possible to:

• evenly distribute the load over the contact surface,
• reduce localized tension
• improve the resistance of the joint to vibration.

In agricultural and earthmoving machines, where vibrations are constant, this results in increased operational safety and reduced maintenance requirements.

Fine pitch
The fine pitch of the thread ensures resistance to loosening caused by vibration. This is a thread that is particularly suitable for applications where maintaining clamping accuracy over time is critical.

Strength class 12.9
Strength class 12.9 indicates that the Torx flanged screw is made of very high-strength steel, capable of withstanding very high mechanical loads. This type of screw is ideal for fastenings in areas subject to high stress. Safety and reliability are thus ensured even under critical operating conditions.

Burnishing treatment after tempering
The screw has undergone tempering, a heat treatment that increases its hardness and mechanical strength. Next, the burnishing treatment was applied, which provides additional protection against corrosion. Burnishing, not only improves the aesthetics of the component with a uniform dark finish, but also reduces the formation of surface oxides and improves weathering resistance.

Learn more about treatments and coatings for fastening systems.

End cut for orientation
Finally, this Torx flanged screw has a special end cut that facilitates correct orientation during assembly. This detail is important to speed up assembly and ensure the perfect position of the fastener during production or maintenance.

In conclusion

The choice of Torx flanged screws makes it possible to meet the demands for durability, strength and reliability required in the agricultural and earthmoving industries. Specifically, these screws made to our customer’s design ensure high performance even under the most demanding operating conditions.