DIN 8140 + Stainless Steel / SS + Threaded Insert / Wire Thread Insert / Helical Insert / Helicoil
DIN 8140 + Stainless Steel / SS + Threaded Insert / Wire Thread Insert / Helical Insert / Helicoil
Thread repair inserts conforming to
German Industrial Standard DIN 8140,
designed to reinforce threads in soft
substrates (aluminum/magnesium alloys,
plastics) with permanent vibration-
resistant and anti-loosening solutions.
Parameter | Specification | Test Standard |
Material | Stainless Steel 316L (A4) / 304 (A2) | ISO 3506 |
Tensile Strength | ≥700 MPa (316L) | DIN 50125 |
Salt Spray Resistance | ≥1,500 hours (neutral) | ISO 9227 |
Operating Temp. | -200℃ ~ +750℃ (316L vacuum annealed) | DIN EN 10204 |
Installation Torque | 1.3 × standard torque (M6 substrate) | DIN 8140:2017 |
Locking Type | Diamond Knurl or Pre-applied Threadlocker | §3.2 DIN 8140 |
Key Applications:
Mandatory Use Cases (DIN 8140 Regulated Fields)
Industry | Typical Components | Function |
Rail Transportation | Train bogey bolt holes | Prevents fatigue stripping in aluminum threads |
Aircraft Engines | Magnesium alloy housing mounts | Reinforces threads against thermal creep |
Medical Devices | CT scanner titanium frame mounts | Biocompatibility + non-magnetic interference |
