Universal three-way round pile square pile threaded bar coupler usable with a tieback anchor

A three-way round pile square pile threaded bar coupler, comprising:

• a thread bar interface section;
• and
• a pile interface section;
• said pile interface section including a first pile interface configured to couple to a round cross-section type pile and a second pile interface configured to couple to a four-sided cross section type pile;
• said thread bar interface section including a thread bar interface end having a thread bar opening configured to receive a thread bar and a thread bar nut chamber configured to prevent a thread bar nut from rotating;
• said pile interface section including first pile openings configured to receive a bolt associated with a round cross-section type pile;
• said pile interface section including second pile openings configured to receive a bolt associated with a round cross-section type pile, said second pile openings being configured to receive a bolt associated with a four-sided cross section type pile;
• said pile interface section including a four-sided cross section type pile opening and inner four-sided cross section type pile chamber;
• said inner four-sided cross section type pile chamber including a four-sided cross section type pile stop member configured to enable a fastener opening of a four-sided cross section type pile to line up with said second pile opening.