8" UV Black Self Cutting Cable Zip Ties - 500-Pack. Save time and frustration using the latest innovation from Ancor, a. self-cutting cable tie. Simply lock and twist to finish the job, with no. need for additional tools! This leaves a clean cut, which improves. appearance and eliminates the sharp tail while maintaining a 50 pound. tensile strength.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.