40 Piece Pack Heavy Duty M4 X 0.7mm Stainless Steel Self Lock Nylon Inserted Lock Nuts For 3D Printer And Furniture Projects With Plastic Storage Case

40-Piece Stainless M4 Nylon Insert Lock Nuts in Case
✔️ 40 pcs M4-0.7mm stainless nylock nuts with plastic case

A 40-piece pack of stainless steel M4 nylon-insert lock nuts with a compact plastic storage case. Handy for securing bolts on 3D printers, furniture frames, and other DIY assemblies.

✅ Material: stainless steel with nylon insert for self-locking action
✅ Thread size and height: M4-0.7mm pitch; 5.0mm total height; 2.9mm hex height; 7.7mm across flats; fits 8mm spanner
✅ Standards: DIN 985 compliant nylon insert lock nut; rust resistant
✅ Packaging: 40 pieces in plastic storage case

💡 What is a nylon insert lock nut used for in everyday hardware projects?

In short, it's handy for keeping fasteners from loosening in vibration-heavy builds.

- Great for 3D printers and furniture frames - Nylon insert locks the bolt under load to resist back-off - Stainless steel body resists corrosion - Works with standard M4 bolts for broad compatibility ✝️