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I tend to worry about things falling off my UTVs because of the vibration and rough trails/rodes I ride. The knobs that tighten down the standard brush guard looked like they might possibily loosen up and fall off. I found a similar knob in McMaster-Carr that had a longer threaded shaft. After tightening the knob I now have about 3/8" of threaded shaft sticking out that I ran a lock nut onto. I can now loosen and tighten the knob and now worry that it will fall out (even If I forget to tighten it...which I've done)




Here's a pic of the standard knob and the replacement.


The part number for the knob is McMaster-Carr 2776K25(Fiber-Filled Polypro Comfort-Grip 3-ARM Knob, 5/16"-18 X 1" Threaded Stud, 1.77" Diameter). They cost $2.44 each and have soft feel to them.
 

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Good info.
 

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I got tired of mine being a pain to screw in, so I removed and used some pins. Now it is much easier to remove and replace. I used a wire that attached to a bolt to keep from losing !
 

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Good idea, I messed up my threads long time ago and ended up drilling the hole out and installed pins indtead of the bolts also.
 

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I've never had problems with mine vibrating loose, but that's still a good idea.
 

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I use mine like a battering ram to plow through saplings when the trail is blocked....so now it's a little loose. Probably gonna end up drilling it out to a slightly larger size and use some pins or a bigger bolt.
 

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The pins I used were small enough that I didn't have to drill out holes.
 

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Ball Lock Quick Release pins for....$28 each? + shipping! Too rich for my taste.

At that price, they might come up 'missing'..........
 

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A friend of mine tried the aircraft pins but his rattled and made noise. The longer bolted knobs are ok but here is a thought. As long as you would have to use a wrench anyway to take off the locking nut why not just throw away the knob and use a longer bolt then back it with a locking nut that way it cant come loose and no rattles. Thats what I did to mine and no problems. thanks
 

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mike65072,
I ordered the knobs you posted with the longer threaded screws from Mcmaster-carr yesterday and they showed up at my door today! Awesome. They're exactly what I was looking for. Thanks for the post.
 

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I don't have the guard on yet, but is there a reason to use pins where the knobs are? Do you need to take them out frequently? Just asking so I won't have to do it twice. Thanks and keep all these tips coming.
 

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I know this is an old subject, but someone may find my solution helpful...

I contacted the makers of ProLockers and bought the spring pins they use on the ProLockers, for $10 each. Locking and non-locking pins are the same price. They couldn't supply the housings, so I made my own by cutting pieces of 1/2" ID black pipe and tapping them with a 18-1.5mm tap. Then I drilled the existing holes out to match the pin size and welded them in place. Now I don't have to worry about losing the knobs, or damaged threads...

Here's the results...

Before...


After...
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