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Interlock USA, Inc.
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    • HEMISPHERE® System
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    • Twin Bolt Lock
      • Wood System
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      • Handles
    • VARRO Screen Systems
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Twin Bolt Lock

A superior design, our Twin Bolt Lock features a single flush handle to operate the top and bottom shoot bolts, providing unprecedented convenience for the homeowner.

Wood System

Aluminum-Vinyl System

Aria

Handles

Unique designs available to complement a wide range of fu…

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  • Sliding & Hung Window Solutions
  • Casement & Awning Window Solutions
  • Sliding Door Solutions
  • Swing Door Solutions
  • Folding Door Solutions
  • European Hardware Solutions
  • Secondary Security
  • Proprietary Solutions
  • Commercial Applications
  • About us
  • Services
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