Cal-Royal CDV24 Single Spring Crash Chain Door Guard with Vinyl Cover, 21-3/4" ChainThe Cal-Royal CDV24 Single Spring Crash Chain Door Guard is a commercial-grade door accessory engineered to protect doors, hinges, and glass from wind damage while supplementing a regular door lock for added security. Featuring a 21-3/4" product length with a 24" steel chain, heavy gauge zinc brackets, and a 13/16" diameter hard-drawn wire spring, this door guard automatically throws the bolt when the chain is released. A weather and rip resistant vinyl cover protects the chain from wear, making this an ideal solution for commercial door applications requiring both protection and added security.Key FeaturesChain Length: 24" steel chain with a 21-3/4" overall product length for reliable door restraint.Spring Specification: 13/16" diameter hard-drawn wire spring automatically throws the bolt when the chain is released.Heavy-Duty Construction: Made with heavy gauge zinc brackets and steel chain for long-lasting commercial durability.Wind Damage Protection: Protects doors, hinges, and glass from wind damage in high-traffic commercial settings.Weather and Rip Resistant Vinyl Cover: Shields the chain from weather exposure and physical wear for extended service life.Added Security Supplement: Equipped with a strong hard-drawn wire spring that works alongside a regular door lock for enhanced security control.Convenient Packaging: Individually poly-bagged with mounting screws included for straightforward installation.Technical SpecificationsProduct Group: Door Trim and AccessoriesProduct Subgroup: Door GuardsProduct Type: Latch ProtectorsSubcategory: Door GuardsCommercial/Residential: CommercialFeatures: Supplement to a Regular Door Lock for Added Security; Equipped With a Strong Hard-Drawn Wire Spring Which Throws the Bolt Automatically When Chain is ReleasedProduct Length: Chain: 24"; Product Length: 21-3/4"Product Category: Door Trim and AccessoriesDepartment: Door HardwareTypical ApplicationsCommercial Office BuildingsEducational FacilitiesHealthcare InstitutionsRetail EstablishmentsIndustrial and Warehouse FacilitiesMulti-Tenant Residential PropertiesGovernment and Municipal BuildingsWhy Cal-Royal CDV24?Cal-Royal CDV24 door guard products deliver dependable, commercial-grade construction with heavy gauge zinc brackets, a durable steel chain, and a weather and rip resistant vinyl cover built for demanding door security applications. Engineered as a practical supplement to standard door locks, this door guard provides an added layer of protection where reliable, easy-to-install hardware is essential.