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The Stanley WedgeLock™ is a fastening system featuring an integrated design that wedges the fastener in place to resist loosening. The Stanley WedgeLock™ system is comprised of four parts. The wedge ramps intregrated in the fastener head bearing surface mirror and mesh with ramps designed into the top side of the WedgeLock™ washer. The bottom side of the Wedgelock™ washer incorporates locking serrations that create a secure locking bond when assembled properly. A SEMS assembly process permanently retains the washer to the fastener.

The most common fastened assembly issue is vibration loosening. Vibration loosening carries a huge product liability impact that can ultimately threaten your financial bottom line. The negative effects of vibration loosening include:

  • Liability of injury to end user
  • Perception of poor quality
  • Costly field repair

Fast Facts:

  • Positive consistent mechanical lock
  • SEMS assembly — no lost washers
  • No misoriented washers
  • SKU Reduction 2/3 to 1
  • Single washer system
  • Simplified field service

Stanley WedgeLock™ Product Description

wedgelock™ explainer graphic

Stanley WedgeLock™ consists of a special threaded fastener with helical ramps formed into the head bearing surface. These fastener head bearing surface ramps work with the ramps on the Stanley WedgeLock™ washer to provide a positive and consistent locking mechanics. The Stanley Wedgelock™ washer is further designed with bearing surface locking serrations that when torqued to the desired clamp load during assembly, embed into the application bearing surface creating a secure mechanical bond.

The Stanley WedgeLock™ single washer system provides a locking washer solution that minimizes unwanted slippage and reduces variation. This leads to a very consistent and reliable positive locking mechanism. The Stanley WedgeLock™ washer is retained on the fastener by a Sems assembly process. This ensures correct orientation of the washer and eliminates the hazards that lost and misoriented washers can cause.

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The availability of the products described on this site, and the product descriptions, may vary from country to country. Consult your STANLEY Engineered Fastening Account Executive or your local distributor for specific product information.