Rigid D-Series Security Kit The Security Hardware Kit comes with stainless steel security nuts, bolts, and the required security keys for installation. This kit needs to be used in conjunction with standard hardware that is provided with your light. Features: Compatible with D-Series Pro Lights from Rigid Protect lights from theft Use with light hardware to secure light Stainless steel construction Note : Must be used along with standard hardware supplied with your light. Not compatible with Rigid E/SR-Series