Brass moulding inserts are an essential component in plastic, wooden, and composite moulding applications. Known for their high durability, corrosion resistance, and superior threading properties, brass inserts provide strong and reliable fastening solutions in various industries. Whether used in injection moulding, press-in, or ultrasonic installation methods, these inserts offer exceptional mechanical strength and longevity.

What Are Brass Moulding Inserts?

Brass moulding inserts are specially designed fasteners that are embedded into plastic or other materials during the moulding process. These inserts provide a strong, threaded hole for securely attaching screws, bolts, or other fittings. The primary benefits of using brass inserts include:

✔️ High corrosion resistance
✔️ Excellent thermal and electrical conductivity
✔️ Strong and durable threading
✔️ Easy installation with various methods
✔️ Resistant to wear and tear

Thread Types Used in Brass Moulding Inserts

1. Metric Threads (ISO Standard - M Series)

✔️ Most commonly used thread type
✔️ Denoted as M2, M3, M4, M5, etc. (indicating diameter in mm)
✔️ Ideal for precision applications in electronics and engineering

2. Unified Threads (UNC & UNF)

✔️ UNC (Unified National Coarse) – Used in general applications
✔️ UNF (Unified National Fine) – Used for high-precision applications
✔️ Common in North American markets

3. British Standard Threads (BSW & BSP)

✔️ BSW (British Standard Whitworth) – Used in mechanical and electrical applications
✔️ BSP (British Standard Pipe) – Common in plumbing and piping connections

4. Knurled External Threads

✔️ Provides additional grip and prevents pull-out
✔️ Enhances torque resistance
✔️ Ideal for press-in and heat-set inserts

5. Self-Tapping Threads

✔️ Designed for easy installation in soft materials
✔️ Creates its own thread as it is inserted
✔️ Used in woodworking and plastic moulding applications