This zinc plated steel Maillon Rapide delta quick link forms a semi permanent link when tightened with spanner. The 5/16" (8mm) delta is quite a small quick link (see pictures for dimensions and perspective) but has a breaking load limit of 27kN along the vertical axis and 10kN along the horizontal axis. Weight: 3oz (86g) Thickness: 5/16" (8mm) Opening: 3/8" (10mm) Made in France - CE Tested