Adams Rite MS1861-02-603-IB MS1861 Series MS Bottom Rail Deadbolt, Vertical and Horizontal Bolt Operation, Individually Boxed, Zinc Plated Steel

When doorway space is limited, the Adams Rite by ASSA ABLOY MS1861 bottom rail deadbolt delivers robust security where standard locks can't. Designed specifically for ultra‑narrow stile and tempered glass doors, this MS1861 deadbolt uses hardened steel cylindrical bolts that require smaller drilled strike holes—reducing debris collection and the risk of snagging on thresholds. The zinc-plated steel body resists corrosion in commercial storefronts and high-traffic installations.

Installation is straightforward: the lock accepts any standard 1" length, 1-5/32" diameter mortise cylinder with an MS cam (sold separately) and provides 360° key or thumbturn operation for fast, intuitive locking. Key removal is restricted to fully locked or unlocked positions for positive status assurance—ideal for security, access control and perimeter protection in retail, healthcare, and institutional settings.

If your project requires a compact, reliable deadbolt that integrates with surveillance and monitoring systems and withstands daily use, the MS1861 offers a practical, high-security solution. Contact sales or add to your order today to secure narrow-stile or glass-door openings.

• Engineered for ultra-narrow stile and tempered glass doors to deliver secure locking where conventional locks won't fit
• Hardened steel cylindrical bolts minimize strike hole size to reduce debris buildup and snagging, improving long-term reliability
• Accepts standard 1" length, 1-5/32" diameter mortise cylinders with MS cam for flexible integration with existing access control systems
• 360° key or thumbturn operation with positive lock/unlock ensures clear status and prevents accidental cylinder removal
• Zinc-plated steel construction resists corrosion in high-traffic commercial environments and is individually boxed for easy inventory management