Nutsert kit For the best mechanical fixing, nothing beats a nutsert. Our Stainless Steel Nutserts have a very wide grip range to suit plastic bumpers. Our step drill bit is also VERY handy and comes with a few handy features Starts from 3mm - Great for making small pilot holes and pre-drilling Step up in 1mm increments - Slow, steady steps for clean and accurate drilling for plastic. The videos below will talks about the correct technique and the tools you may need. Kit Includes: 4x Stainless Steel M6 Nutserts 2x Stainless Steel M6 20mm bolts OPTIONAL Metric Step Drill Bit (+$30) .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }