Cable glands are an important part of many electrical setups. They are used to attach and fasten the ends of cables to equipment or surfaces, providing the cable with protection, strain relief, and grounding. Cable glands are available in a number of materials, including plastic, metal, and stainless steel, and are available in a variety of diameters to suit various cable types and sizes.

Cable glands' principal role is to establish a secure and stable connection between cables and equipments surfaces. 

Cable glands are intended to form a barrier between the cable and the equipment, preventing moisture, dust, and other external elements from entering and harming the equipment. Certain cable glands are also engineered to be explosion-proof, which is useful in situations where combustible gases or vapors provide a risk of explosion.