| A Thread size | M4x0.7 | |
| L Insert lengths | 9.0 mm | |
| E External diameter | 6.5 mm | |
| P Pitch | 0.75 mm | |
| HD Head diameter | 9.0 mm | |
| T Head thickness | 1.0 mm | |
| Base panel material | Plastic | |
| Materials | Brass | |
| Heat Treatment | None | |
| Surface Treatment | Cleaning | |
| Guideline values for receiving hole diameter | 6.1-6.2 mm | |
| Min.borehole depth for blind holes thickness | 10.0 mm | |
| Installation Equipment/Method | Self-tapping Insert | |
What are the three categories of threaded inserts?
Threaded inserts are used to provide strong, durable threads in materials that would not secure themselves, such as soft metals, plastics, or wood. There are three main categories of threaded inserts:
Spiral Inserts: These are often referred to as “helical coil” inserts. They are made of coiled wire and are designed to be installed into pre-drilled holes. Once installed, they provide new internal threads that can accommodate a standard screw or bolt. Spiral Inserts are often used in applications where the original threads have been stripped or damaged.
Solid Inserts: These are solid cylindrical inserts, usually made of metal or plastic. They install in pre-drilled holes and provide a sturdy threaded interface. Solid Inserts are available in a variety of materials and are typically used in applications that require high strength and durability.
Press-Fit Inserts: These inserts are designed to be pressed into holes in a substrate. They often have knurling or other features that help them grip the surrounding material securely. Press-Fit Inserts can be made from a variety of materials and are used in applications where a secure, permanent connection is required.
Each type of threaded insert has specific applications and benefits, depending on the materials used and the assembly requirements.