Industrial spring clips is a small metal piece that is used to connect two chain links to each other. This spring clamp is usually made of steel or stainless steel, which allows it to be easily inserted and tightened between links. There are two main types of spring clamps used in industrial chains:
U-shaped spring clamps: They are the most common type of spring clamp. They are U-shaped and fit into the holes of the connecting links.
Ring spring clips: These spring clips have a ring at one end. The ring is inserted into the connecting ring hole and then the spring clip is compressed to secure it in place.
Both types of spring clamps are effective in securing connector links, which type of spring clamp you use depends on the specific application. For example, ring spring clips are often used in applications where the chain is subject to high vibration or shock loads, so they are more secure and less likely to loosen or break.

offset link is a special type of chain link that is used to add a half link to an industrial chain string. Standard industrial chains only have an even number of links, so if you need an odd number of links, you must use a half lock.
Half locks consist of two side plates, a roller, a bush and a pin with a holding rod. The side panels give the half-lock its unique shape. When a half lock is installed in a chain, it creates a half link that allows you to adjust the length of the chain to an odd number of links.
Half locks are typically used in drives that have short chain lengths and do not use tensioners or adjusters. They are also used in applications where it is necessary to accurately adjust the center distance between gears.
However, it is important to note that half locks are weaker than standard chain links. This is because the form of the side plates reduces the load support. Therefore, it is important not to overuse half locks and avoid using them in applications subject to high loads or high speeds.