binifiMux 40pcs M4 x 0.7mm 304 Stainless Steel Nylon Lock Nuts Inserted Hex sold2024 Do not buy counterfeit from

Do not buy counterfeit from other sellers

This is created by the nylon insert and is completely normal

Grit size: 46

and micro-tips provide the perfect extension for tiny cracks

these Teflon Bowden tubes are an instant upgrade for any 3D printer setup

binifiMux 40pcs M4 x 0.7mm 304 Stainless Steel Nylon Lock Nuts Inserted Hex sold2024 Do not buy counterfeit frombinifiMux 40pcs M4 x 0. 7mm 304 Stainless Steel Nylon Lock Nuts Inserted Hex Nylon lock nut is a round nut, and in its outer open four small slot, you can use the crescent wrench screw on the stud, the lock nut should be equipped with a shaft Washer, it can be used to make the small groove on the stud and its peripheral groove relative to the fixed, to prevent its loose. Bolt thread on the nuts embedded in the nylon extrusion, making the nylon