Adams Rite MS-1891-4015-628 Lockset for 1-1/2" Backset in Clear
SKU
MS-1891-4015-628
Model No
MS-1891-4015-628
$168.60
Product Highlights
- Clear Anodized finish
- Cylinder Backset: 1-1/2"
- Case is made of stainless steel with corrosion-resistant plating that measures 1" x 7-3/8" x depth (depth varies by backset)
- Standard Jamb Lip length
- Radius faceplate measures 1" x 6-7/8"

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The MS-1891-4015-628 from Adams Rite is a Lockset for 1-1/2" Backset in Clear. The MS-1891-4015-628 series Deadlock/Deadlatch provides a maximum security deadlock for after hour and traffic control convenience during business hours. It operates in such a way that the 360 degree turn of key or thumb turn throws or retracts the hook-shaped deadlock and then 120 degree further turn retracts latch bolt as well. Cylinder may accept any standard 1-5/32" diameter mortise cylinder or thumb turn from either or both sides. Handle retracts spring-loaded latchbolt only.
Adams Rite MS-1891-4015-628 Features
- Clear Anodized Finish: Offers a sleek and professional appearance while enhancing durability against wear and tear.
- Cylinder Backset: Designed for a 1-1/2" backset, ensuring compatibility with a wide range of doors.
- Stainless Steel Case: Constructed with corrosion-resistant plating, it measures 1" x 7-3/8" x depth (depth varies by backset), providing long-lasting performance.
- Standard Jamb Lip Length: Ensures compatibility with standard door installations.
- Radius Faceplate: Measures 1" x 6-7/8", providing a clean fit and finish.
- Handed Operation: Available in LH or RHR (Left Hand or Right Hand Reverse door) for tailored installation.
- Cylinder Not Included: Allows for flexibility to use any standard cylinder based on security needs.
- MS+1891 Deadlock Compatibility: Operable by any standard 1-5/32" diameter mortise cylinder with MS cam for added versatility.
- Grade 1 Strength: Classified as Grade 1, offering industry-leading durability and security.
- Eight Ply Laminated Latchbolt: Measures 5/8" x 1-3/8" with a 13/16" throw, designed for reliable operation.
- Armored Strike: Features a satin stainless steel trim plate with a steel mounting plate and dust box for enhanced security.
Detailed Specifications for Adams Rite MS-1891-4015-628
| Finish | Clear Anodized |
| Cylinder Backset | 1-1/2" |
| Case Material | Stainless Steel with Corrosion-Resistant Plating |
| Case Dimensions | 1" x 7-3/8" x Depth (varies) |
| Jamb Lip Length | Standard Length |
| Faceplate Dimensions | 1" x 6-7/8" |
| Handing | LH or RHR |
| Cylinder Included | No |
| Deadlock Compatibility | Standard 1-5/32" Diameter Mortise Cylinder with MS Cam |
| Strength Rating | Grade 1 |
| Latchbolt Specifications | Eight Ply Laminated Stainless Steel, 5/8" x 1-3/8", 13/16" Throw |
| Strike Type | Armored Strike with Satin Stainless Steel Trim Plate |
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