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