It won’t be wrong to call the PCB pins a building block of any PCB design. As PCBs, pins provide an interconnected system to the designed PCBs and perform many plug-in applications.
Hooks offer a lot of functionality to the PCB design. PCB pins can be fastened to the PCB board as it is, or they can be pressed into the circuit, swaged, or in most cases, soldered onto the PCB board.
PCB pins provide the needed conductive path required on an electrical circuit.
It gives strength to an assembly module as a mechanical interface.
Figure 1 shows some of the most commonly used types of PCB pins.

Figure 1
1. header pins
PCB header pins are commonly used to provide an electrical connection between two components or between a PCB board member.
However, there are many types of PCB header pins, but mostly it is the male connector in a row separated from each other over a fixed distance.
Figure 2 shows a PCB header pin.

Figure 2
2. PCB socket pins
PCB socket pins are commonly used for mounting such components, which cannot be easily fixed on other connectors or boards.
Such features with single contact points are preferably selected on the PCB board using the PCB socket pins.
PCB socket pins exist in various ranges and dimensions to make it easier for users to choose one of their choices depending on their requirements.

Press-fit pins have evolved in recent years, allowing designers and engineers to use solderless press-fit connectors.
These PCBs pins are easy to use, making the production process less costly and more accessible than conventional methods.
In this case, it becomes significantly more accessible for the engineer to debug the circuit.

PCB alignment and guide pins support the components mounted on the PCB circuit board.
PCB solder pins are, however, one of the most commonly used PCB pins where the connectors are soldered onto the top of the circuit board.
Their typical applications are in prototyping and developing electrical circuit boards. Figure 3 shows a PCB solder pin.

Figure 3
3. PCB jumper pins
PCB jumper pins commonly provide a conduction path over an electronic circuit’s closed or open bypass part.
They are essential as the designer needs to provide a bypass connection to the electronic components used in a PCB board.
PCB terminal pins are designed to fulfill the growing requirements of the electronic industry.
The PCBs terminal pins provide high current, separable connections onto the PCB board.
The various types and designs of these PCB pins allow the designer to work on different installation schemes for the designs.
The emerging improvements and advancements in PCB pins have made it significantly easier for engineers to work on prototypes and final PCB designs.
These developments have paved the way for executing many other complex designs, which seem impossible using conventional methods.