Burrs are formed by cut nicks on two nut halves. This stops the screw on the ridge. I ordered a pack of four and all four had the same problem. The seller sent a replacement and all four also had the same problem. It's not about mismatched leads or submissions. The burrs and resulting thread distortion are large enough to be seen without magnification.
Iverntech 400Mm MGN12 Linear Rail Guide With 2 Black Stainless Steel MGN12H Carriage Blocks For CNC Parts And 3D Printer Upgrades
8 Review
Goodyear Ultra Grip Ice SUV 235/65 R17 108T winter
35 Review
Iverntech MGN12H Linear Rail Guide With Stainless Steel Carriage Blocks - 700Mm Length For 3D Printer And CNC Machine
9 Review
Iverntech MGN12 700Mm Linear Rail Guide With MGN12H Stainless Steel Carriage Block For 3D Printer And CNC Parts
11 Review
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review
FKG 99502HNR Bearing Width Pre Lubricated
5 Review