Designed for industrial, commercial and institutional use, the Yale 5400LN Series heavy-duty lever lock offers no compromise when it comes to rugged reliability and performance. With key construction features such as our Free Wheeling lever mechanism, wear-resistant chassis plates, heavy-duty lever return springs and through-bolting, this Grade 1 lever lock trend setter proves time and again why it’s the favorite among architects and building owners who demand the highest standard of product quality. -Each lock is supplied with 2 keys.