Yale Safety Door Chain 10-50mm Polished Brass SKU: 212014 MODEL: MC30PB Error. try again later You've successfully joined the club $ 19 .99 each Available on orders $50 to $1500. More info × Mitre 10 Variants This door chain provides added security, and allows safer inspection of visitors before the door is fully released. Features and benefits Strong steel construction. Simple to install. Surface fitted security accessory. 10 Year Mechanical Warranty.