Panduit PLC4H-S25-TL Locking Clamp Cable Ties are used to secure cable bundles to another surface such as a control panel, communication rack, wall or ceiling. The cable tie design allows for bundling before or after screwing clamp in place, for use with #1/4 (M6) screw. Light-Heavy cross section, 15.1" (384mm) length. Made of Nylon 6.6, are natural white in color and come in packages of 250.