Staking is ideal for assembling plastic parts. It's quick and inexpensive. It can join dissimilar materials. It eliminates the cost of fasteners and adhesives, and it allows engineers to loosen the tolerances for molded parts.
How well an assembled plastic part performs depends a great deal upon how its component pieces are joined. Those made of strong, hard plastic may be fastened together or bonded. Thermoplastic pieces allow for even more options, including screws and rivets, various types of adhesives or welding, staking and being snap-fit.