You can purchase quicklinks from slackline specific shops, climbing stores and industrial sources. They may come with either the MBS or the WLL stamped on them. If bought from a slacklining or climbing source chances are it comes with the MBS. Unless otherwise determined, we typically apply a 5:1 safety factor to the MBS. To get the WLL simply divide the MBS by 5, then you can determine if the connector is suitable for the application. Industrial and marine quicklinks generally feature the WLL stamped on the body, but sometimes they come without a load indicator. If you find one without a load indicator it’s wise not to use it.
Quicklinks can be made from stainless steel or other steel alloys. They are generally designed for linear loading and can also come twisted. Delta quicklinks work well to connect to spansets, but are not intended for tri-loading, just for taking wider textile connectors such as straps or spansets. Quicklinks need to be closed with a wrench if you want to be sure that the gates do not unscrew when unloaded, but most often finger tight is suitable enough. Always check to make sure the gate is shut before applying tension. You can also tape the gate shut in applications where they are meant to be permanently installed.