The eAK-4 is a kit of (4) SP10-38 asphalt anchors with matching quantity of 1 EPX3 epoxy grout cartridge. The SP10 is a 6" long and ⅞" diameter anchor with an internal ⅜" coarse thread. The chemical anchor requires the use of the epoxy to bind it to the asphalt in a stress-free manner. See SP10-38 listing for details about the anchor. The EPX3 is a cartridge of epoxy adhesive. The single tube contains two parts which mix automatically through the provided nozzle at a ratio of 10:1. The epoxy cure within an hour under temperatures over 70 degrees F.