302 Groove Self-Tapping Inserts
- Self-tapping inserts丨302 groove inserts丨Thread strength enhancer丨No-tap installation丨Internal-external threaded sleeve
302 Groove Self-Tapping Inserts: High-Strength Threads in Soft Materials Without Tapping
The 302 groove type self-tapping insert revolutionizes thread reinforcement with its innovative "self-tapping" design. As a cutting-edge fastener, it eliminates traditional tapping processes — simply drill a pilot hole and drive the insert directly into softer substrates like plastics, aluminum alloys, cast iron, or copper. Its dual-threaded structure (internal/external threads) creates exceptionally high-strength internal threads, earning it the nickname "internal-external threaded sleeve."
Key Features:
No Tap Needed: Installs 70% faster than standard inserts丨Time-saving installation
Groove Design: Anti-rotation grooves prevent loosening under vibration丨Vibration-resistant
Universal Material Compatibility: Ideal for soft metals & engineered plastics丨Multi-material application
Dual Thread Reinforcement: Boosts pullout strength by 200% vs. native threads丨Thread strength enhancer
Installation in 3 Steps:
Drill: Create a pilot hole (e.g., 5.0mm for M6 insert).
Drive: Insert with hexalobular (TORX) driver at 200-400 RPM.
Secure: Grooves lock into host material at final ¼ turn.
Pro Tip: Use wax lubricant in cast iron to reduce insertion torque.
Critical Applications:
Electric vehicle battery mounts (aluminum thread repair)
Marine polymer fittings (saltwater-resistant threads)
3D-printed prototypes (reinforced plastic threads)
HVAC copper pipe joints (anti-vibration fastening)
Industry Advantage:
Reduces assembly costs by $0.38/unit vs. tapped holes (ASME B18.29-verified).