Unique Bargains 50pcs Knurled Insert Nuts M3x4(L)x4.5mm(OD) Brass Female Threaded Inserts Heat Set Insert for 3D Printing Components and Plastic Shell

Material: The brass threaded inserts are made of brass, which has strong anti-corrosion, anti-rust, and anti-oxidation capabilities, is aesthetically durable, and has a long service life

Strict Craftsmanship: These embedment nuts are made with strict craftsmanship—clear threads, uniform pitch, an ultrasound-cleaned smooth burr-free surface; the knurled pattern boosts torsion resistance for firmer bonding with the plastic matrix

Easy to Install: Knurled brass nuts made of brass have good thermal conductivity and can be installed in the tapered hole by hot melting, hot pressing, or ultrasonic welding, and can also be injection molding

Wide Application: Brass heat set inserts are widely used in 3D printing, automotive, electrical appliances and more; ideal for 3D printers, molding/injection molding machines, cars, laptops and appliances with plastic casings