Ultrafryer 24369

CAP TOP KNURL KNOB

In foodservice equipment, a knob may be as simple as a push button or "palm button". A control knob is a rotary control used to provide input to a device when grasped by an operator and turned, so that the degree of rotation corresponds to the desired input . Such knobs are one of the most common components in restaurant equipment control systems and are used to modulate a wide variety of settings such as temperature, viscosity, speed and more.

A knurled screw or nut has an etched, cross-hatched, or diamond patterned finish instead of hexagonal or square edges to help in tightening or loosening the nut without the use of a tool. The knurled surfaces provide enough grip to hold the nut between the thumb and forefinger. Hence it is also called a thumb nut. It is mainly used on small-diameter bolts within electrical components.