Adams Rite - Blank Faceplate MS1850 series MS® Deadlock

The Adams Rite MS1850S Series MS® Deadlock is a high-security locking solution engineered specifically for single-leaf narrow stile aluminum doors. Featuring a nearly 3-inch long laminated stainless steel bolt, it is activated by a simple pivot mechanism, making it the benchmark deadlock in the narrow stile industry. This robust bolt delivers exceptional strength—even for tall, flexible doors or wide door-to-jamb gaps—making it a go-to choice for commercial entrances requiring reliable security.

The deadbolt is thrown or retracted with a 360° rotation of the key or thumbturn, and the key can only be removed when the bolt is in a secure locked or unlocked position. It is compatible with any standard 1-5/32" mortise cylinder or thumbturn featuring an MS-type cam.

Key Specifications

• Backset Options: 31/32", 1-1/8", or 1-1/2"

• Case: Steel with corrosion-resistant plating, measures 1" x 6", depth varies by backset

• Bolt: 5/8" x 1-3/8" x 2-7/8", eight-ply laminated stainless steel with alumina-ceramic core to resist hacksaw attacks

• Faceplate: 1" x 6-7/8"

• Strike: Not included; compatible strikes available separately

• Operation: 360° turn of key or thumbturn; compatible with standard 1-5/32" mortise cylinders with MS cam

• Packaging: Individually boxed

Available Options

• MS1850S-050: Shorter hook bolt for narrow jambs

• MS1850S-020: Short throw, no hook

• Additional Bolts: Second and third point locking bolts for double doors

• SCHOOLHOUSE Version (SCH1850S): Unlock-only operation from inside; handed (LH or RH)

Finishes Available

• 313: Dark Bronze Anodized

• 335: Black Anodized

• 628: Clear Anodized