Amazon.com : White Rodgers 50A55-3797, 50A55-474 Furnace Control Board, Replacement for Trane Single Stage CNT02891 CNT03797 CNT02789 Integrated
ASTM A574 Alloy Steel Socket Head Cap Screws | STS Industrial,White Rodgers 50A55-3797, 50A55-474 Furnace Control Board, Replacement for Trane Single Stage CNT02891 CNT03797 CNT02789 Integrated Furnace Control, ,Amazon.com : White Rodgers 50A55-3797, 50A55-474 Furnace Control Board, Replacement for Trane Single Stage CNT02891 CNT03797 CNT02789 Integrated ,4-40 x 5/8