A mounting system for functionally-coupling a line-replaceable unit with a structural manifold for supplying fluid coolant can comprise a fastener for the line-replaceable unit having a base and a projection. The projection can have a proximal portion and a distal portion, where the fastener is at least partially-threaded along the projection, and a plurality of seals are disposed radially along the projection. A channel can extend along a longitudinal axis of the fastener from the distal portion of the projection toward the proximal portion of the projection. One or more outlets can be disposed along the projection, the one or more outlets providing fluid communication between the channel and an external environment of the fastener. The fastener can be reversibly-coupled to a mating fastener of the structural manifold such that, when coupled, the line-replaceable unit is rigidly coupled to the structural manifold and fluid is able to flow therebetween.