They're used on thin sheet metal so you can have more threads than just through the thickness of the metal, without having to weld on a nut. You drill the required sized whole. Thread the polynut onto the stud of the install gun. It works off of air. Stick the nut into the drilled hole once it's installed on the gun, pull the trigger and the "crushable" part of the nut sandwiches down on the material. Pull the bottom part of the trigger amd it unscrews the stud out of the newly installed nut. They may have another name but that's what we call them at work. Kinda long winded there but hope you understood what I meant. I don't have any pictures of them currently..
Polynut=nutsert. Jcart explained it better. The gun we have that installs them just makes it easier than screwing a bolt in and trying to tighten it down. The air pulls the threads back and crushes it onto the metal.
Oh ok, so he did. Thank you Twitch. Is this something that can be obtained from a regular hardware store, or is it a specialty item. Also, what size would be appropriate for the skids? Thanks?
If it where me I'd take one of the metric skid bolts into a specialty store and get a Polynutsert whereby the internal threads match and get the steel ones, they come in aluminum too but steel is more robust. My skid material was 9.5mm thick so I counter sunk the stock washers so they fit flush in the skid and was able to use the stock bolts. My concern was mashing tearing out the bolts by hooking the washes on a rock so far have drug the belly on a host of stuff and no major misadventures.
Thanks jrc. This sounds a little intimidating. I still don't understand how the nutsert is installed into the frame if you don't have that gun. Otherwise I'll take the stock bolts with me to get a thread matching ns. Do these come with instructions for what size hole to drill? Seems like a difficult operation to be doing somewhat upside down!!!
I'm really not sure if a regular hardware store would have them. We have a "nuts and bolts" place locally that stocks them. I followed suit and did m6's(factory size)just so I wouldn't have to have different size sockets when taking the skid off. Which I replaced all the factory bolts with longer stainless steel m6's. Those short ones are pain now that my skid is all one piece. The shorty's won't the easiest with the factory configured skids...
Thanks. Yeah, the bolts working loose is the reason my skid is all one piece now. Got high centered and bent part of the factory skid down. I'm glad I added all the holes to keep the mud from building up as bad. Which I cut mine on a water jet so won't like I was drilling them all by hand. I hope to get back to stick guard project soon. I made a couple stainless steel versions of them but haven't gotten around to checking for clearance issues. Have had a couple other "hobbies" that have taken priority to them. I started reloading ammo a while back and trying to work up a new load for my latest 6.5 grendel AR build. I'm really liking this gun but that's a whole other forum and subject...
