EEEEE M2 M2.5 M3 M4 M5 M6 (350pcs) metric Threaded Inserts for plastic Heat set insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding press thread nuts M2 M2.5 M3 M4 M5 M6 350pcs industrial Self-lockingSelf-locking Fastener Design

Self-lockingSelf-locking Fastener Design

For use with plastic or rubber hose

plating ect

kids need the right tools and these durable

EEEEE M2 M2.5 M3 M4 M5 M6 (350pcs) metric Threaded Inserts for plastic Heat set insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding press thread nuts M2 M2.5 M3 M4 M5 M6 350pcs industrial Self-lockingSelf-locking Fastener DesignEEEEE M2 M2. 5 M3 M4 M5 M6 (350pcs) metric Threaded Inserts for plastic Heat set insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding press thread nuts Product Features 350pcs heat insert for 3D printer and threaded brass inserts Individual compartment with door M2: 78pcs M2. 5: 78pcs M3: 72pcs M4: 80pcs M5: 24pcs M6: 18pcs