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Distribution sites
Competence centres
  • Titgemeyer Tools & Automation
    de en cs
  • Cirteq Fastening Technology
    de en es fr
  • Rieko Roller Shutters
    de en
  • TS Cargo Control
    de
  1. Fastening Technology
  2. Lockbolt
  3. HuckBolt C50L Lock Ring Bolt System

HuckBolt C50L Lock Ring Bolt System The lockbolt system for heavy-duty applications.

Lockbolts are ideal for permanently and securely fastening two parts together so that they will never detach even when subjected to preload or dynamic load. HUCKBolt C50L is a pin and collar system comprising grade 8.8 material with a diameter of 12.7 mm. The pin tail breakoff is designed to marry perfectly with the specially adapted collars. Collars are available with or without flange, as required.
The HUCKBolt C50L system is used for applications involving very high input forces and torque (heavy-duty applications). Even when subjected to vibrations, the applied clamp force remains constant. As a positive locking device that fastens permanently with the bolt, the collar is impossible to remove.

Installation steps

Insert the bolt into both throughholes on the components and, with the chamfer aligned to the end of the bolt, slide the collar over the lockbolt. (Fig. 1)

Fully press the installation tool with attached pulling head against the collar while securing the pin in place from the opposite side to prevent it from being poked out. (Fig. 2)

Press the trigger on the installation tool. The jaws then grip into the grooves on the pin tail and tug at the pin. The pulling head sleeve presses up against the components and the resulting clamp force pushes them together. (Fig. 3)

As the tool continues to pull, the pulling head sleeve slides over the collar. (Fig. 4) This reduces the external diameter of the collar. The compressed material slides into the locking grooves of the bolt to form the desired positive fit. As the front side of the sleeve elongates, it is pushed up against the component to create the desired preload where the parts connect.

The tool will continue to pull until the lockbolt’s preload is achieved, causing the tip of the bolt (pulling head) to snap off at the end of the collar. Installation is now complete. (Fig. 5)

  1. Brazier or countersunk
  2. Smooth pin shank
  3. Locking grooves
  4. Breakneck groove
  5. Pin tail
  6. Collar
  • Select lockbolts based on the specified requirements as well as the clamping thicknesses available on-site (sum total of all wall thicknesses to be installed)
  • Select the installation tool incl. pulling head that matches the lockbolts to be installed (for details, see “Overview - High-strength Lockbolts” in the „Tools for Lockbolts“ catalogue)

Benefits at a glance

  • Very high tensile and shear strength
  • Very high clamp force
  • Safe-build-up of clamp force
  • Constant clamp force / preload
  • Vibration resistant
  • No heat exposure around the joint
  • No warping
  • No refinishing required around the joint
  • No surface damage on components
  • Visual inspection
  • Installation can be checked usingnprocess monitoring
  • Maintenance-free
  • Quick and easy installation

 

Download HuckBolt® C50L PDF