Easily installed with cap screws from either side.
Tapping is the process of cutting a thread inside a hole so that a cap screw or bolt may be threaded into it.
To adjust the setting of the valve, loosen locking cap screw with hex wrench, see Figure 3.
Heat and unscrew all the cap screws.
Hexagon lobular socket head cap screws--Property class 4.8
Hexagon lobular socket head cap screws--Property class 8.8
