A lock pin assembly used for clamping two plates together, that have aligning bores for receiving the lock pin assembly. In certain embodiments, the modular stand systems herein are advantageously used to support HVAC variable refrigerant flow units. The outer end flanges may thereafter be removed to reduce a size of the cable reel. First-party cookies are less susceptible to cookie deletion and are therefore able to provide better targeting for more relevant ad delivery.