StrongHold SSM3S8-C0 screw applied cable tie have a unique design that provides maximum stability for cable bundles. Install with a #8 (M4) screw. Suitable for miniature, intermediate, standard, and light-heavy cross-section cable ties. Made of Weather Resistant, Nylon 6.6, which increases mechanical strength, heat and wear resistance, and stiffness. For indoor and outdoor environments, are black in color, and come in packages of 100.