D Shackle for Perma - anyone used this?

I picked up some stainless steel d shackles and was thinking about using them for the bolt side of a perma instead of mallions.

Anyone have experience or advice?

I wouldn't use a shackle the has a screw pin for perma draws, they aren't meant for permanent applications. There are shackles with a bolt/nut/cotter pin which are meant for long term applications. 

I can't tell how big the one is in the picture but it looks small. If you were using one that size, I would make sure it is rated to at least what the rest of the perma draw is. Even if it is rated, they usually aren't rated or intended for dynamic applications, so use at your own risk.

It's much easier to steal, so if that is a problem I would avoid it. There is also less stuff to clip to since a big quick link has plenty of room to clip into, this probably doesn't.

There are a lot of cons, and the only pro is that they can be cheap. 

No, please don't. Seems like a swinging action could "undo" the shackle. I personally wouldn't climb a route equipped that way.

For what it's worth I was going to use loctite on the threads.

They are rated for 30kn.

Why?

Seems like it would hang wired, has that tab sticking out and without being the cotter pin type could come undone.

Not a 'safety shackle' type so no. Manufacturing method is different to those of safety shackles (which have a bolt and nut with cotter pin) and this type can be prone to cracking.

Another nope

If you are putting up permanent gear don't be cheap

No need to reinvent the wheel. Keep shackles in slacklining, out of climbing. 

Thanks all for the input 

I think yes to safety shackles though not as convenient and easy as quicklinks, but I got a few on erigging a while ago for cheap and have equipped a few routes that way.  I think they since went up in price on erigging though

There are safety shackles that have Allen wrench driven pins and are flush on both sides. On the thread side the female threads are sort of mangled on the outer surface, creating a type of mechanical thread lock.  I use one to permanently attach a minitraxion to my TRS harness. You can find them in the sailing community. They will be at least 10x as expensive as the beefy, tested, quicklinks over at Hownot2.

David Miles wrote:

I picked up some stainless steel d shackles and was thinking about using them for the bolt side of a perma instead of mallions.

Anyone have experience or advice?

Mouse the shackle and you'll be fine. Shackles are used in permanent installs all the time in the rigging world. Mousing is what keeps it safe.

They are absolutely acceptable for use on a perma.

You do have to be considerate of how you desired mousing may effect the materials attached to the shackle. zip ties get used a lot to mouse shackles, but may not be appropriate for your intended install.
Safety shackles are good option too as stated above. Or some also have bolt thread style pin that you and put in a cotter. Thats what Jim posted. They also make one with i think they call it a locking ring. not sure they would be appropriate for this task though.