Sunhokey 4PCS Upgraded Hand Twist Leveling Nut Diameter 40mm+ 4PCS Hot Bed Light Load Compression Mould Die Springs + 4PCS M4X35 Screws for 3D Printer

I bought a used printer that had a bent mount screw and really small adjustment wheels. This kit did the trick, AND includes yellow upgraded springs as well. Looks good, works great.

I really want to like this product, I really do. It has nice flat stock springs, and easy to use knobs. Beats adjusting those finicky little nuts all the time. The bolts are long, and cleanly threaded. So whats the problem?The i3 bed (200mm x 200mm) has holes in the corners like most beds, but the Y axis rods interfere with the knobs making them a no-go for an install. That and you really lose some Z height with those awesome springs.The kit is the decent quality as you would expect, and I think they are neat. I'm keeping mine around for other projects, but unless you have about 2 fingers of space between your bolt hole and your Y rods, and at your min/max positions - you will have install or adjustment issues.I ended up installing a BLTouch, so manual leveling is moot now anyway.

The product comes with a 3.3mm screws (had to enlarge current holes on heat plate, and sturdy nob of a 39 mm diameter 10 mm thick. It does not clear the tracks and front plastic of my Anet A8. No fault of manufacturer of seller.Good buy if it fits.

The diameter of the knob is significantly less than "original" knobs. Not a big deal, but was surprised