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Discussion Starter #1 (Edited)
No way I'm paying $18 each for the L&R hold-downs. They can only clamp something down to the bed and don't provide a place to tie off or anchor a bungee. So I made my own.

There are a few different types of expanding rubber plugs available in hardware, boating and plumbing stores. Here are some choices of 1" stoppers that should be available at most well-stocked hardware stores and plumbing supply:


The rubber on the left and right plugs is a little soft so I didn't trust it to be a good anchor. The plug in the middle uses a rubber stopper that's firm and solid. Once snugged in place I'm unable to pull it out. To make it usefull as a tiedown I replaced the metal parts with a 1/4-20 x 1.5" eyebolt and a 1/4-20 "T-nut". A T-nut is a woodworking nut with barbs that sink into wood to keep the tapped nut from spinning. Cut or grind the barbs off leaving tiny nibs to keep the nut from rotating on the rubber stopper. Run a regular nut up the shaft to jam against the eye or the end of the threads. Re-use the large flat washer that came with the stopper. Spin on the T-nut and the finished anchor will look like this:


As you finger-tighten the eyebolt the rubber is squashed between the T-nut and flat washer and expands to grip the hole in the bed. Don't overtighten or you risk cracking the plastic sleeve in the hole.

You can also substitute a hook for the eyebolt to make an anchor that's convenient for looping the middle of a bungee thru.
 

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michiganhooligans
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you dont need l&r plugs i just clamped rubber bungie hook in a vice and bent it out a little. this way nothing stick's up and gets in the way. just slip bent out hook into l&r hole. but if you dont have to worry about l&r loop sticking up it would work great.good idea for some cases.it would be a good idea to use some anti-seaze. (?)
 

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Discussion Starter #5
I made up a bunch and keep them in a box in my tote along with a couple bungies and some parachute cord. You can see on the left one what the T-nut looks like with the barbs cut off.

 

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Discussion Starter #7
I found all 3 at a local ACE hardware. I don't think the big box stores carry plugs this small. It's getting harder to find the well-stocked neighborhood hardwares we used to take for granted til the giants drove them out of business.
 

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Great tip Mark! I made a few of my own, I just took it one step further and dipped the loops in rubber. I used Performix Plasti-Dip, they came out really nice. Check them out!




 

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The plasti-coat adds a nice touch. Great tips, guys!

For an online source, check out McMaster-Carr. I'll see if I can find a link.
 

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guy, do you know the name for the plug you used? I can't seem to find anything quite like it in the McMaster site ... and that's rare.
 

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Discussion Starter #16
They're called rubber test plugs. Plumbers use them to cap off pipes before pressure testing a new installation.
I checked McMaster and Grainger and neither show the exact same ones I found at my local ACE hardware.
 

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They're called rubber test plugs. Plumbers use them to cap off pipes before pressure testing a new installation.
I checked McMaster and Grainger and neither show the exact same ones I found at my local ACE hardware.
That's what I thought they were. Yup, no luck with McMaster ... that's rare.
 

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Discussion Starter #20
Might work--but get the 3/8" ID tube. Silicone would probably be too soft to grab strong.
 
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