The 16255 with Speed nut is a fastening component manufactured by ROMIX. It is designed to secure parts such as wires and cables in tight spaces, while allowing for quick and easy assembly and disassembly. The component consists of an open-ended S-shaped nut, which fits into a pre-cut hole, and into which is inserted a washer, a screw, and an internal expansion spring. When the screw is tightened, the internal expansion spring compresses, expanding the internal diameter of the fastening component so it can grip the edges of the pre-cut hole, securely fastening the part in place.