This is a nutsert and acts the same as an anchor you would use for wood. The ribbed section you see is the section that will crush and grip the metal. To setup the nutsert for installation take the longest bolt you were sent and put a washer on it then put the nut you were sent and put that on then add another washer then thread the nutsert on the bolt. Then push this hole assembly into the hole you drilled.
Put an 1\2 wrench on the bolt to hold it in place and help stabilize the nutsert.
Put a wrench and socket also a 1\2 and I recommend using a 1\2 set for more leverage. You must tighten the bolt while putting enough pressure inwards to keep the nutsert tight in the hole. It will be tough going at first as you crush the nutsert. As your going you will notice you can wiggle the setup while wrenching it down then once the ribs in the nutsert give way it will become a lot easier to turn the bolt. Once you see the setup tighten up and stop wiggling the bolt will get hard to turn again which means you close. Tighten to about 15 FT LBS and remove the bolt and check the nutsert to see if its crushed all the way. It is not recommended that you use any power tools to install the nutsert. The risk of over tightening the nutsert is high with power tools so stick to doing by hand. If you do use an impact take the bolt out often and visually check the nutsert until you get a feel for how much it takes to crush the nutsert and get use to where to stop.
This is what it will look when its crushed all the way. You do not want to over tighten the nutsert you will risk it spinning and loosing its grip. If this happens apply a small tack to it with a welder and grind flat that will hold it in place.
For the bolts on the front and rear up by the doors you just have to open the doors and use a wrench to tighten these bolts up.
Under neath this is what it will look like when your done.
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