Fig. A demonstrates an example of a halter-hitch shown in the zig-zag-stitch pattern with spare rope overhang. 

Fig. B demonstrates the prime example of a lock-hitch.

Note: The brass ring in this photo represents your halter ring or loop. 

A lock hitch can be described as a half-hitch or double half-hitch and can also be used on the 7-Port Tie Disk. 

Note: To see the serpentine or zigzag stitch on a Tie Disk halter-hitch, click here.