

HEICO-LOCK Wedge Lock Washer Standard - Stainless Steel


The HEICO-LOCK® Wedge Lock Washer (Standard Series) in stainless steel is a vibration-resistant locking system engineered for critical bolted joints exposed to dynamic loads and cyclic stress. The locking mechanism operates on a preload-based wedge principle (α > β), where cam face geometry converts loosening motion into increased clamping force, while radial teeth mechanically interlock with mating surfaces to prevent rotational back-off.
Manufactured from A4 / 316L stainless steel with surface hardening to high hardness levels, the system delivers excellent corrosion resistance and long-term joint stability in demanding environments. Supplied as pre-assembled pairs and produced to tightly controlled dimensional tolerances in accordance with recognized fastening standards, the standard series ensures consistent performance across a wide range of bolt applications. Detailed dimensions are provided below to ensure correct specification and installation.
Even under extremes of vibration or dynamic loads, the HEICO-LOCK® Wedge Locking System provides maximum reliability.
When the bolt is tightened, the external radial teeth of the HEICO-LOCK® Wedge Lock System embed themselves in an interlocking fashion with the respective mating surface.
If the securing system is subject to dynamic stress, movement is only possible between the internal washer surfaces. This results in an increase in the clamping force.
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Certified system for securing bolts, working at low and high preload levels
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Particularly suitable for dynamic loads – including when using lubricants
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Can be re-used
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Very easy to install and remove (wedge lock washers are supplied as a pre-assembled pair)
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Also suitable for high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts
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Available in steel or stainless steel with narrow or wide bearing surfaces – other materials are available upon request
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Available from M3 – M76 and ¼” – 3” - custom sizes upon request
Assortment Box Dimensions
Optionally in Steel or Stainless Steel
Standard or Enlarged version
50x M5 50x M6 50x M8 25x M10 25x M12 15x M16
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