Our nylon zip ties are made for maximum strength and durability and can be used for a variety of applications. They are made of premium grade, 6/6 nylon and can withstand temperatures of up to 150°F, meeting UL material standards. Closely spaced positive-locking teeth allow for easy adjustment. Zip ties have smooth, rounded edges that will not cut insulation and are comfortable to use with bare hands. 18” nylon zip ties have a tensile strength of up to 120 lbs. and come in a bag of 100.