Screw links stand up to multi-directional forces better than carabiners and allow ample room for multiple pieces of gear to be attached. This very small size is ideal for attachment of ascender components in ascending systems such as bungie cords. At 3.5mm, it is NOT recommended for life-support use, but to use in other non-life load situations.
Note: Links are stamped with a Working Load Limit (WLL) that is about 1/5 of its rated breaking strength. The user should decide if this is an acceptable ratio for the intended load. When using a Maillon Rapide stay well within the Working Load Limit (WLL) stamped in kilograms on every link.