Using Float in a Fixed Fastener Assembly This example illustrates the effects fastener float has on a measurement with parts constrained by fixed fastener assemblies. The assembly includes axle supports that are fastened to the top plate using 10 mm bolts. The measurement to evaluate is the minimum and maximum distance between the inner faces of the axle supports. The top plate and axle supports have these dimensions and tolerances. Parent topicFixed Fastener Assembly Fixed Fastener Assembly Without Float Fixed Fastener Assembly with Float