M3*3*4.2MM Brass Knurled Injection Molding Nut OD=4.2MM

The M3×3×4.2mm Brass Knurled Nut is a high-quality threaded insert specifically designed for injection-molded plastic parts. Manufactured from corrosion-resistant brass, it features a knurled outer surface that ensures excellent retention when embedded into plastic through heat or ultrasonic insertion.

With an outer diameter of 4.2mm, length of 3mm, and M3 internal threading, this insert nut is ideal for use in applications requiring reliable, repeatable fastening without stripping plastic threads. It is commonly used in enclosures, 3D printed parts, control panels, and mechanical assemblies where frequent screw removal and reassembly are needed.

Specifications:

Thread Size: M3

Length (Height): 3mm

Outer Diameter: 4.2mm

Material: Brass

Surface: Knurled for enhanced grip

Installation Method: Heat staking, ultrasonic embedding, or press-fit into thermoplastics

Type: Round insert nut for plastic injection molding