How Do Turnlock Fasteners Work?

Turnlock fasteners are a type of mechanical fastener that secures components by twisting a part into place. These fasteners consist of two main components: a male and a female component.

  1. Components and Mechanism:
    • The female component usually has two arms.
    • The male component has a cross pin that fits into the two arms of the female component when twisted.
    • When the male component is twisted, the two arms of the female component lock around the cross pin, creating a secure connection through a spring mechanism.
  2. Secure Connection:
    • As the male component is twisted, the female component’s arms press against the pins, generating friction that keeps both components securely joined.
    • This design also prevents accidental disengagement.
    • The fastener can lock at various angles, allowing flexibility in securing components.
  3. Materials and Applications:
    • Turnlock fasteners are typically made from stainless steel, zinc-plated steel, or aluminum.
    • These fasteners are commonly used in the aerospace industry, securing aircraft components, and other high-stress environments.
    • They are also found in consumer products like bags and luggage.
  4. Operation and Preload:
    • Turnlock fasteners can be operated by hand or with a tool, depending on the stud’s head style.
    • When twisted 90°, the stud assembly rotates, causing the cross pin to ride up the cam and apply a controlled preload to the joint.
    • A positive mechanical stop is reached, locking the cross pin in place, and a reverse twist unlocks the fastener, providing quick and easy access.
    • Elastic preload is maintained by a spring element within the stud or receptacle, ensuring reliable performance over multiple cycles.
  5. Advantages:
    • Unlike threaded fasteners, Turnlock fasteners do not depend on the materials’ elasticity for preload.
    • They provide a controlled, repeatable preload, contributing to their strength, security, and reliability.

Discover how Turnlock fasteners can enhance your projects with their robust and secure design. For more detailed information and product options, discover our website.

Ruben

Ruben

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