Adams Rite 4900-45-101-313 Heavy Duty 1-1/2" DeadLatch

Adams Rite 4900-45-101-313 Heavy Duty DeadLatch is designed for flexibility and robust security in commercial applications. With a backset of 1-1/2 inches and a flat faceplate, this deadlatch features a durable steel case with corrosion-resistant plating, ensuring longevity even in high-traffic environments. The latch includes a solid brass bolt that can be easily reversed using just a screwdriver, making installation straightforward. A key highlight of the 4900 Series is its unique bolt holdback feature. When the bolt is held fully retracted, a reverse turn of the key retains it, allowing for two-way traffic management. This functionality is ideal for applications that require free entrance at certain times and exit-only at others. The deadlatch is also interchangeable with MS1850A or MS1850S deadbolts of the same backset and faceplate shape, facilitating seamless upgrades. Both flat and radius faceplates are included, with the flat option adjustable for right or left beveled edge doors. The deadlatch is supplied with a standard 4902 strike for nearly flush door closes. Designed to be compatible with any standard mortise cylinder, it accommodates various cylinder backsets. The Adams Rite 4900 Heavy Duty DeadLatch is the perfect solution for reliable access control in commercial settings.

Heavy Duty DeadLatch 1-1/2 BS

Heavy Duty Deadlatch, Flat Faceplate, 1-1/2 In. Backset, 4-5/8 In. Flat Mortised Strike, LH or RHR, Dark Bronze Anodized

Flexibility of traffic control and installation is offered by the 4900 Series Deadlatches. A reverse turn of the key while bolt is held retracted retains the bolt, to allow two-way traffic for applications which require free entrance at certain times and exit-only at other times. Interchangeable, without stile modification, with any MS1850A or MS1850S deadbolt of same backset and faceplate shape. Also retrofits to existing 4500/4700 Deadlatch preparations. Steel case with corrosion-resistant plating. Screw-fastened tube spacer brackets allow for cleaner removal when tab mounting. Screw-fastened tube spacer brackets allow for cleaner removal when tab mounting. Screw-fastened tube spacer brackets allow for cleaner removal when tab mounting. Solid brass latch bolt is easily reversible using only a screwdriver. Stainless steel auxiliary latch pin deadlocks latch bolt to prevent "loiding" or case-knife entry. Both flat and radius faceplates are supplied. Flat faceplates can also be adjusted in the field for right or left beveled edge doors. Standard strike furnished is 4902 for flat jamb where door closes flush or nearly flush. Specify 4901 for retrofit installations. Also available: radius strike for opposite stile in paired doors and long lip strikes for center hung doors. Turn key or operate handle or paddle to retract spring loaded latch bolt. To hold bolt retracted, push it in and secure by reverse turn of key. Uses any standard mortise cylinder with MS cam. Available in three cylinder backsets, 31/32 In., 1-1/8 in. and 1-1/2 in.. Individually boxed with Flat and Radius Faceplates, Strike and machine screws for mounting. Order cylinders, paddle, handle or latch pull separately.

Flexible traffic control and easy installation.

A reverse turn of the key while bolt is held retracted retains the bolt, to allow two-way traffic for applications which require free entrance at certain times and exit-only at other times.

• Bolt Holdback: While bolt is held fully retracted, a reverse turn of the key retains the bolt, allowing the door to be free swinging.
• Cylinder Backset: 31/32”, 1-1/8”, or 1-1/2”
• Case: Measures 7/8” x 5-13/16” x depth. Depth varies by backset (see table on catalog page). Steel with corrosion-resistant plating. Screw-fastened tube spacer brackets allow for cleaner removal when tab mounting.
• Latchbolt: 5/8” x 1” x 5/8” throw. Solid brass. Handing is easily reversible using only a screwdriver.
• Auxiliary Latchpin: Stainless steel. Deadlocks latch bolt to prevent “loiding” or case-knife entry.
• Faceplates: Measures 1” x 6-7/8”. Both flat and radius faceplates are supplied. Flat faceplates can also be adjusted in the field for right or left beveled edge doors.
• Strikes: Standard strike furnished is 4902 for flat jamb where door closes flush or nearly flush. Specify 4901 for retrofit installations. Also available: radius strike for opposite stile in paired doors and long lip strikes for centerhung doors.
• Cylinder Cam: Operable by any standard mortise cylinder with MS® cam, dimensioned as shown. Cylinders with MS® cams can be readily obtained from most cylinder manufacturers. See CYLINDERS for cylinder make, thumbturn and trim ring information.
• Options: Backset, strike, and finish must be specified when ordering. For information on handles, paddles, and lever operators, see TRIM. See ELECTRIC STRIKES for compatible access control products. See 4920AN Heavy Duty Deadlatch (ANSI Size) for wood and hollow metal door applications.
• Standard Package: Individually boxed with flat and radius faceplates, strike, and machine screws for mounting. Order cylinders, paddles, handles, or lever operators separately. Shipping weight: 1-1/4 lbs.

Resources

• 4600 Deadlatch Handle with 4300/4500/4900 Installation Instructions
• 4900 Catalog Page
• 4900 Heavy Duty Deadlatch Cut Sheet
• 4900 Series Deadlatch - 31/32 Backset Added
• 4900 Series Deadlatch - Faceplate Additions Technical Memo
• 4900 Series Deadlatch Technical Memo
• 4900 Series Heavy Duty Deadlatch Installation Instructions
• 4901, 4902 Deadlatch Strikes Installation Instructions
• What is Backset and How Do I Measure it?