Cost pEr Unit BrEakdown Bimba.com Steel Supply Steel Supply Casters of oK mcmaster mcmaster mcmaster mcmaster Ace Ace1/4˝-20 jam nut (12) FoS-701 1/4˝ x 12˝ flat (2´) 6˝ x 12 ga. round mT (1´) Trio Pines 80022-01-SR (3) 5/8˝-18 x 1-1/4˝ hex bolt Thrust bearing Thrust washer (2) Push-to-connect 90° elbow 1/4˝-20 x 1/2˝ FHmS (12) total Cost pEr Unit $132.35 13.20 6.65 19.95 0.846 2.66 1.90 2.07 1.20 1.80 $182.63 Figure 2 Figure 3 s p r i n g 2011 theatre design & technology 43http://www.Bimba.com