V-COIL Wire thread insert Screw locking type SL M 3 x 0.5 - 1.0 D (100 pcs.)

• Application Area:
  • Thread repair of damaged or worn threads.
  • Thread reinforcement of materials with low shear strength.
  • Salvaging rejects, especially with faulty threads.
  • Preferred for applications with vibration or shock effects.
• Advantages:
  • Made from high-quality austenitic stainless chrome-nickel precision profile steel wire.
  • Offers increased temperature and corrosion resistance.
  • Leads to higher thread load capacity after repair due to improved thread properties.
  • Provides an additional security through clamping torque.
  • Due to its compact design, it can be installed in existing constructions without any other preparations.
  • The position is maintained by the radial pressure effect between the coils and the flanks of the tapped hole.

One or more polygonal clamping coils of the insert exert a radial pressure on the external thread of the screw. Each clamping coil consists of a number of tangential strands that protrude beyond the diameter of the ordinary free-running coils.

When the bolt/screw is inserted, the clamping surfaces are displaced, creating the radial pressure that securely locks the screw. When the bolt/screw is removed, the clamping coils relax and return to their original shape. This allows for repeated screwing while maintaining a measurable degree of radial pressure.

• Standard: DIN 8140
• Material: Stainless Steel
• Tolerance: ISO 2 / 6H
• Nominal Dimension: D 3 x 0.5
• Length: 1 D
• Packaging Unit: 100 pieces
• EAN: 4022835052050
• Article Number: 05205

Q1: What is the main difference between this and a free-running thread insert?

The main difference lies in the clamping effect. The self-locking Type SL exerts a radial pressure on the screw through special clamping coils, which secures it against loosening. A free-running insert does not have this function.

Q2: Why is the thread insert red?

The red color serves as a clear identification feature for the self-locking Type SL thread insert. This allows you to easily distinguish it from other V-COIL inserts.

Q3: Can I use the insert in any material?

Yes, the insert is designed for materials with low shear strength, such as aluminum or magnesium. It reinforces the thread and prevents damage.

Q4: What does the specification "M 3 x 0.5" mean?

"M 3" stands for the metric nominal diameter of 3 mm, and "0.5" is the thread pitch. It describes the exact specification of the thread being repaired or reinforced.

Q5: What is the advantage of the "clamping effect" with vibrations?

The clamping effect prevents the screw from self-loosening under dynamic loads like vibrations or shocks. The radial pressure generated holds the screw firmly in the thread.

Q6: Do I need special tools for installation?

Yes, for a professional installation, you need specific V-COIL tools, including a matching tap and an installation tool, to ensure the correct function of the thread insert.