800 Series: Security Chains Zone has a range of security chains for a wide variety of applications. We offer a medium and heavy duty chain constructed from high quality steel. For higher security levels we offer a chrome molybdenum alloy chain that provides exceptional resistance to abuse attack - especially twisting and cutting. The square and hexagonal link cross section provides greater resistance to bolt cropping. All Zone chains are:
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800 Series: Medium Duty and High Security 
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