Product review (2 stars): Do not replace the drum if your bolts are spinning.
I cannot attest to the quality of this specific part, aside from the fact it is an LG part and is no doubt the same quality junk that you are looking to replace.

I did want to assure anyone looking to repair their washer who finds the nuts just spinning on the old spider, that they DO NOT NEED A NEW DRUM. LG will tell you otherwise as will most parts suppliers but it simply isn't true. Let me explain.

First let me clear up a misunderstanding about what's covered by Lg's lifetime stainless steel drum warranty. According to Lg's reps that I spoke to, only the stainless steel part of the drum is covered, and not the carefully designed and planned obsolescence parts like the spider and lifter assemblies. Surprise!

LG (and I assume other manufacturers) design their washers to fail. It's as simple as that. They warranty the parts that they know have a very low chance to fail like the motor and stainless steel drum but surround them with inferior parts that will just squeek by the 5 year store warranties and then crap out. Mine lasted 5 years 3 months. My extended warranty from sears... 5 years. Surprise!

These companies are counting on people weighing the repair time/cost against just buying a new machine. They want at the very least for you to be forced to purchase expensive parts from them or even better, to just go purchase another unit.

Look inside the tub, those plastic agitators are called lifter assemblies. These lifters cover another plastic piece. The plastic pieces the lifters cover are what the spider part is anchored to. That's right, the part that holds the drum to the spider which connects to the motor are plastic.

What is worse, those pieces are designed to never be replaced and is why LG and other suppliers will tell you, you need a new drum. The reason why the old bolts are spinning when you try to remove the old spider is the bolts were sprayed with lock tight and then screwed into nuts that are housed in plastic. So when you go to unscrew them the nuts break or bend the plastic constraints they are housed in and just spin inside the lifter assembly because the plastic cannot endure the pressure needed to break the years of corrosion and lock tight. Surprise!

Actually what surprises me more is that any of the bolts unscrew at all considering the deck is masterfully stacked against them.

So that brings me to what you need to do. You need to try to keep as much material out of the land fills as possible and don't let the companies win by buying a new drum or unit.

How? Drill out the bolts that spin. I grabbed a large drill bit a bit (hehe) smaller than the head of the bolt and chewed it down to the washer until the threaded shaft was all that remained. Then I took a punch and punched the shaft down so the lifters fell down inside the tub. Make sure you bend up the stainless tabs on the outside that help keep the lifters in place first. And make sure you keep it centered so the head remnants and lock washer breaks away when the bit reaches the washer level. This will save time and keep you well away from the stainless tub.

Once the lifters drop down you will have access to the nuts and can repair the plastic frame they sit in. I used JB weld to set the nuts back in and also strengthened the few nuts that didn't spin with JB weld for when I have to replace the spider in five years.

Buy six 8mmx45mm stainless steel bolts with some stainless washers and lock washers. You will need them for when you connect everything back together.

So all in all, I have invested 70 for the spider, and 80 for the bearings,  seal and outer tub gasket. Roughly 10 for the stainless hardware. 160 IS cheaper than a repair man, cheaper than a drum and way cheaper than a new washer. Win! Right?

Now add the time it took to teardown the washer,  the frustration involved with every step of the too-many-to-count step process and the realization that the front loading washers are filthy just by their nature. Gunk gets trapped in every nook and cranny (behind the lifters, all up in the seal, the tub lip, the outer tub etc. Multiply that by the realization that the same parts will fail the exact same way in the future.

It doesn't feel like I won. Suprise!