... UL 873 and par. 6.6 of CSA C22.2 No. 24-93.R - Temperature Regulating Thermostat, the Calibration ... Equipment, UL 873, Eleventh Edition and CSA C22.2 No. 24-93, respectively.Use - For use only in ... as Shaft stop. Retained in the hexagon hole on Top Plate.5. Hexagon Screw - Brass, measures 7.6 mm ... - Manufactured by Foshan Electrical Precision Alloy Co. Ltd., Type 8105, 0.8 mm thick, overall 40 mm by ...