What is Reddit's opinion of BIGTREETECH Direct Anti Backlash Spring Loaded Nut Pitch 2mm Lead 4mm Elimination Gap Nut for Acme Threaded Rod Lead Screws DIY CNC 3D Printer Parts(Pack of 4 Lead 4mm)?

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I got these: BIGTREETECH Direct Anti Backlash Spring Loaded Nut Pitch 2mm Lead 4mm Elimination Gap Nut for Acme Threaded Rod Lead Screws DIY CNC 3D Printer Parts https://www.amazon.com/dp/B083JWJT8W/ref=cm_sw_r_cp_apip_7XJaywsmb84mF

Make sure you get the 4mm pitch (I’m assuming you have a newer Ender 5 plus)

Known problem with the brass nuts on the zaxis lead screws. I bought anti backlash brass nuts that took the noise away completely. I bought these ones from Amazon

I ended up getting the brass versions and they work great so far, no more noise.

I followed this guide:

https://www.youtube.com/watch?v=lBpXHWJG7aM

I got these ones from amazon:

https://www.amazon.com/BIGTREETECH-Direct-Backlash-Elimination-Threaded/dp/B083JWJT8W/ref=sr_1_1?dchild=1&keywords=BIGTREETECH+Direct+Anti+Backlash+Spring+Loaded+Nut+Pitch+2mm+Lead+4mm+Elimination+Gap+Nut+for+Acme+Threaded+Rod+Lead+Screws+DIY+CNC+3D+Printer+Parts%28Pack+of+4+Lead+4mm%29&qid=1613275896&s=industrial&sr=1-1

Change over to these anti backlash nuts. I had to replace my brass nuts with these and it took away all screeching. The sound only gets worse without the replacement. Here is what I purchased https://www.amazon.com/dp/B083JWJT8W/ref=cm_sw_r_cp_apip_7XJaywsmb84mF