What Are the Different Types of Alignment Pins?

Alignment pin by Monroe

Alignment pins are commonly used to align and position workpieces. Also known as locating pins, they are manufactured to strict standards. Alignment pins feature specific dimensions, allowing for a precise fit in the hole with which they are used. There are several different types of alignment pins, however, each of which features a unique design.

Shoulder Alignment Pins

Shoulder alignment pins are characterized by a wider handle diameter relative to that of the pin body. The handle is essentially a shoulder because it’s wider than the pin body.

The handle is the top part of an alignment pin, whereas the pin body is the bottom part that’s inserted into a hole. The photo above depicts a typical shoulder alignment pin. As you can see, the handle is wider than the pin body.

T Alignment Pins

T alignment pins receive their namesake from their T-shaped design. They still feature a pin handle and pin body, and they are used for many of the same alignment and positioning applications as their shoulder counterparts. T alignment pins simply feature a T-shaped design.

With their T-shaped design, T alignment pins are ergonomic. You can easily grip them with one hand to remove them.

L Alignment Pins

While some alignment pins feature a T-shaped design, others feature an L-shaped design. L alignment pins are ergonomic and easy to grip as well. The handle of an L alignment pin, however, creates a 90-degree angle with the pin body.

Some people prefer T alignment pins, whereas others prefer L alignment pins. The only real difference between these two styles lies in their handle. T alignment pins feature a perpendicular handle that extends across the top of the pin body. L alignment pins, in comparison, create a 90-degree angle with the pin body.

Why Does the Handle Have a Small Hole?

Whether you’re shopping for a shoulder alignment pin, T alignment pin or L alignment pin, you may notice that it has a small hole in the handle. Most alignment pins don’t have a completely solid handle. Rather, they are designed with a small hole in the handle.

The purpose of the handle hole is to accommodate a cable. You can always remove alignment pins manually by gripping and pulling them out with your hand. Alternatively, you can connect a cable to them. Placing a cable through the handle hole of an alignment pin will allow you to remove it by pulling the cable.

Looking for Alignment Pins?

Click below to browse Monroe's Alignment Pins!

Browse Alignment Pins