Safety and efficiency are combined in our patented EZ RigLok mechanical pin locking system.

For better wear, get Columbia Steel's patented EZ RigLok mechanical pin system for dragline rigging

Get better wear than conventional fixed pin designs with the Columbia EZ RigLok® floating pin and manganese bushing assembly.

A dragline clevis designed for EZ RigLok® installation
  • Hammerless design for safe installation and removal
  • Lock pin can typically be inserted from either side
  • Designs available to retrofit your existing rigging, or integrally cast into new equipment
  • Available for most pin diameters

Made with our H-Series alloy for high tensile strength and toughness, providing good resistance to abrasion and excellent ability to handle impact

Australian Patent Number 2011253753, USA Patent Number 9,163,378

Looking for a hammerless repair link?

Your chain repairs can be safer and more efficient with our patented EZ RigLok repair links. Read More