Type 308 Self-Tapping Thread Inserts - ROHS Compliant | Fast Installation for Aluminum & Soft Metals
Key Features & Benefits
Triple-Slot Self-Tapping Design
No pre-tapping required - cuts threads directly into aluminum/magnesium alloys
40% faster installation vs conventional inserts
Patented chip-free grooves (Patent No. CN2023XXXX) prevent material buildup
Dual Material Options
Stainless Steel 303: 1000+ hours salt spray resistance (ASTM B117)
Zinc-Plated Carbon Steel: Cost-effective for industrial applications
Smart Identification
Laser-etched size marking (M3-M12) visible under UV light
Color-coded heads available (Red/Blue/Green) for batch management
Technical Specifications
|
Parameter |
Stainless Steel Version |
Zinc-Plated Carbon Steel |
|
Thread Range |
M3-M12 |
M3-M12 |
|
Installation Torque |
0.8-6.5 N·m |
1.0-8.0 N·m |
|
Tensile Strength |
800 MPa |
1000 MPa |
|
Temp. Range |
-200°C to +650°C |
-30°C to +120°C |
|
Coating |
Passivated (0.5-1.5μm) |
Zn-Coating (8-12μm) |
Use
3-Step Installation
1. Drill: Use recommended drill size (Ø=Major Diameter - Pitch)
2. Drive: Insert directly with hand tool (No tapping needed!)
3. Verify: Flush mounting (±0.1mm tolerance)
Manual installation:
Use the special thread insert installation tool. Refer to the figure below for the specific operation method. The end of the tool in the figure is a quadrangle head, which can be connected with a manual tapping wrench
Electric installation:
The DiI type of HRT numerical control suspension thread insert electric installation machine designed by AVIC can complete the installation of thread insert with high efficiency and high quality.
Installation precautions:
●It is necessary to select the appropriate drilling size according to different matrix materials;
●If the hole is large, it is easy to take out the thread insert when the mounting rod exits;
●If the hole is small, the installation of the thread insert will be difficult or even hindered.
●At the beginning of installation, it is necessary to ensure the perpendicularity between the thread insert and the base surface of the installation hole, otherwise it is easy to deviate and cause unsuccessful installation.
Competitive Advantages
✓ Vs Standard Threaded Inserts: 60% better chip evacuation
✓ Vs Helical Coil Inserts: 30% faster installation time
✓ Bonus: PTFE-impregnated coating option for lubricated installation
Industrial Applications
EV Manufacturing: Battery housing aluminum thread repair
Robotics: High-vibration joint fastening
Telecom: 5G outdoor cabinet corrosion protection
Aerospace: Prototyping & maintenance
FAQ
Q: Can these be used in cast iron?
A: Not recommended - designed for soft metals. Use KEENSERTS for cast iron.
Q: Does zinc plating affect thread accuracy?
A: Coating adds only 0.01-0.03mm - well within ISO 965 tolerance.
Q: What's MOQ?
A: 500pcs for stainless steel, 1000pcs for carbon steel. Mixed orders accepted.