The Zip-It anchor is a one piece self drilling anchor designed for use in hollow gypsum wallboard for light duty loads. It is available in both engineered nylon and Zamac alloy for use with either a No. 6 or No. 8 screws in 3/8" to 1" wallboard. The Zip-It Jr. is formed from engineered nylon for use with No. 6 screws in 3/8" to 5/8" wallboard.