US Cable Ties Screw Mount cable ties are great for automotive, heavy equipment, and electrical/electronics usage. Screw mount ties have a 0.2" (ID) diameter hole in the head that allows for direct attachment to sheet metal including automotive chassis and heavy equipment, wood, concrete or drywall using a #8 or #10 wood or sheet metal screw. Screw mount ties can be mounted before or after bundling. Screw mount ties are made from high strength and lightweight premium 6/6 nylon. Natural ties are not rated for UV exposure and therefore are not suggested for outdoor usage. Operating temperature is -40 to 185°F (-40 to 85°C). AH-2 plenum rated and UL94-V2 flammability rating. ISO 9001 and RoHS Compliant. Made in USA!