3M Standard Nylon Cable Ties are made with high-quality nylon 6/6 and designed to secure wire bundles and harness components quickly, without slipping. The curved tip allows for faster threading and installation, and they feature a self-locking head.3M Standard Nylon Cable Ties are available in several tensile strengths ranging from 18 lb. to 175 lb. and multiple lengths ranging from 4 inches to 48 inches to cover your needs. They are offered in natural and red for indoor use and UV weather-resistant black for indoor and outdoor use. UL Listed 62275 Type 21 or 21S and Plenum Rated AH-2 for use in air handling spaces.