DON JO 30-1/2" Heavy Duty Crash Chain

Protect your commercial exterior doors and hardware from high-wind damage and over-extension with the Don-Jo HDCC Heavy Duty Crash Chain. Engineered to absorb violent impacts, this commercial-grade door stop limits the door's swing radius to prevent costly damage to hinges, door closers, frames, and adjacent walls. Key Features Heavy-Duty Impact Absorption: Built with rugged steel links and heavy-weight springs engineered to cushion the abrupt stop of heavy commercial wood or hollow metal doors. Protective Vinyl Sleeve: Encased in a durable gray vinyl cover that prevents the chain from scratching or marring the door surface and dampens clanking noises during operation. ANSI Certified Security: Conforms to strict industrial hardware standards with ANSI/BHMA A156.3 LB2231 approval for high-frequency, severe-service applications. Commercial Finish Options: Available in Satin Chrome (626) and Duronodic Dark Bronze (DU) to seamlessly match existing storefront or perimeter entrance aesthetics. Specifications Manufacturer: Don-Jo Model / SKU: HDCC-3012 Length / Size: 30-1/2" Overall Length Material: Heavy-Duty Steel Chain & Mounting Brackets Sleeve: Noise-Dampening Gray Vinyl Hardware Compliance: ANSI A156.3 LB2231 Certified Mounting: Surface mounted to top door face and header frame (includes standard fasteners).