and cap screw

it is manufactured from high-grade brass to maintain dimensional stability and resist corrosion during high-temperature combustion cycles

Does this assembly include the keeper

and 620537

Johnson Controls T-4002-122 Terminal Connector and cap screwThe Johnson Controls T 4002 122 is a professional grade terminal connector engineered specifically for T 4002 series high volume thermostats. This critical pneumatic control accessory features two straight fittings designed for a secure, plug in connection to 5 32" OD polyethylene tubing. Built for high capacity applications, it facilitates consistent pneumatic airflow between the thermostat and the mechanical system's actuators or valves. For