300Pcs M2-M5 Brass Knurled Nut Threaded Heat Set Inserts for Plastic 3D Printing

Features：

300pcs Threaded Insert M2 M2.5 M3 M4 M5 M6 Insert Nut Brass Threaded Bushings Internal Thread Knurled Nuts with Plastic Box for Plastic Parts by Heat or Ultrasonic for 3D Printer Parts
7 models and 15 sizes: (dimensions in mm) M2 x 2.5 x 3.2, M2 x 3 x 3.2, M2 x 4 x 3.2, M2.5 x 4 x 3.5, M2.5 x 5 x 3.5, M3 x 4 x 5 , M3 x 5. x 5, MM, 3 x 6 x 5, M4 x 4 x 6, M4 x 6 x 6, M4 x 8 x 6, M5 x 6 x 7, M5 x 10 x 7, M6 x 8 x 8, 1/4-20 x 12.7 x 8, 300 sheets in total.
Pure copper forging, good thermal conductivity, fully automatic manufacturing process, deep thread, uniform slope, smooth surface without burrs, acid and alkali resistance, strong oxidation resistance, durable.
Insert the threaded nut into the hole and heat the nut with a soldering iron. After heating, the threaded insert is pressed into the part.
Then install the screws with the cooled nuts. Nuts can be easily inserted into plastic parts using ultrasound or a soldering iron.
Knurled nuts are designed for thermoplastics. Threaded Insert Nuts are threaded connections for injection molding, circuit board assembly, electronics and most plastic fasteners such as PLA, PP, ABS, PETG.

Specification:

Material : Brass
Thread size: M2 M2.5 M3 M4 M5 M6 1/4-20
Quantity : 300PCS
Color ：Gold

Package included:

Size : Inner diameter x height x outer diameter
M2 x 2.5 x 3.2mm 30 Pcs
M2 x 3 x 3.2mm 30 Pcs
M2 x 4 x 3.2mm 30 Pcs
M2.5 x 4 x 3.5mm 30 Pcs
M2.5 x 5 x 3.5mm 30 Pcs
M3 x 4 x 5mm 30 Pcs
M3 x 5 x 5mm 30 Pcs
M3 x 6 x 5mm 30 Pcs
M4 x 4 x 6mm 10 Pcs
M4 x 6 x 6mm 10 Pcs
M4 x 8 x 6mm 10 Pcs
M5 x 6 x 7mm 10 Pcs
M5 x 10 x 7mm 10 Pcs
M6 x 8 x 8mm 5 Pcs
1/4-20 x 12.7 x 8mm 5 Pcs
All in a practical storage box!