RockHard Extra Heavy Duty Nylon Cable Ties 6.6 standard are designed to withstand rough installation practices that occur in MRO and construction projects. These cable ties ensure excellent bundle tightness, up to a superior 175 LB. tensile strength, are weather resistant, provide lasting flexibility, and are UV black. Recommended for bundling wire, cable, or hose. Best of all these are made for easy and efficient application whether it’s manually or using an application tool.