Factory Spec, FS-530-OORML, O-Ring Chain Master Link Orange 530 Pitch Factory Spec brand, we cannot check if this works with other brand chains Works with Factory Spec brand o-ring chain that has a tensile strength of 8,200 Lbs. Master links for Factory Spec brand Standard, Heavy duty, non O-Ring chains are also available Premium quad riveted pins High Grade Alloy Steel Rollers