Butterfly nut CTD.48 B-M6-3-C9 Z070570

Torque-limited butterfly nut

The CTD.48 B-M6-3-C9 butterfly nut is a fastening element with a mechanism that limits tightening force. It is designed to protect fastened components from damage caused by excessive pressure. This is an ideal solution where precision and control of torque are crucial.

Design and application

Made of durable polyamide-based technopolymer, the nut features a steel, nickel-plated threaded element and a torque-limiting mechanism. This combination of materials ensures durability and reliability. The mechanism works by disengaging when the set torque value is reached – signaling this with a characteristic “click”. This function is similar to a torque wrench, allowing for repeatable and precise tightening. It is important to remember that the torque limitation is not active during loosening.

CTD nuts are used in many industries, especially where delicate mounting of components sensitive to damage is required. Examples of applications include:

• Mounting elements in precision tooling
• Critical points in electronic and mechanical devices
• Assembly of panels and housings requiring controlled pressure

Advantages and benefits

• Protection against damage: The torque-limiting mechanism prevents exceeding the permissible force, protecting delicate components from damage.
• Precision and repeatability: The “click” function ensures repeatable tightening torque, which is important in applications requiring precision.
• Durability: Made of high-quality materials, it guarantees a long service life and reliability even in harsh working conditions.
• Easy identification: Available in black and orange (which makes it easier to distinguish the clamping element).
• Versatility: Available with internal thread (threaded sleeve) or external thread (threaded stud).
• Optimal tightening torque: Available version with a tightening torque of 3 Nm – ideal for many industrial applications.