Adams Rite 1870-20-335 Standard Cylinder-Operated Flushbolt with Flat Faceplate in Black
- Black Anodized Finish
- Non-handed operation
- Cylinder Backset: 31/32"
- Case is made of steel with corrosion-resistant plating that measures 1" x 6" x depth (depth varies by bracket)
- Faceplate measures 1" x 6-7/8"

The 1870-20-335 from Adams Rite is a Standard Cylinder-Operated Flushbolt with Flat Faceplate in Black. The 1870-20-335 series Flushbolt is specifically designed for greater key control specially for the aluminum stile doors that prevents accidental locking of the inactive leaf of paired doors. It uses the same basic over-center action mechanism as MS pivoted bolt deadlocks. It is recommended for installation at both top and bottom of the inactive door with MS1850S Deadlock in the active door for greatest security. The 360 degree turn of key throws or retracts the hex-section bolt and the key can be removed only when the bolt is in a positively locked or unlocked position. It may be installed to lock at the threshold or at the header.
Features
- Black Anodized Finish: Provides a sleek, modern look while enhancing durability against wear and tear.
- Non-handed operation: Allows for versatile installation regardless of door configuration.
- Cylinder Backset: 31/32", ensuring compatibility with various door designs.
- Steel Case: Made from steel with corrosion-resistant plating measuring 1" x 6" x depth (depth varies by bracket), offering robust protection and longevity.
- Faceplate Dimensions: Measures 1" x 6-7/8", suitable for standard installations.
- Mortise Cylinder Compatibility: Accepts any standard 1-5/32" mortise cylinder from either or both sides for easy access.
- Hexagonal Bolt: 3/8" flat to flat bolt made of stainless steel with a 11/16" throw for reliable locking mechanism.
- Adjustable Cylinder Height: Standard cylinder height is 12" with ± 1-1/4" adjustment for precise fit.
- Strike Installation: 1/2" diameter hole in metal threshold or header is suitable for secure strike placement.
Adams Rite 1870-20-335 Detailed Specifications
| Feature | Details |
|---|---|
| Product Type | Standard Cylinder-Operated Flushbolt |
| Finish | Black Anodized |
| Operation | Non-handed |
| Cylinder Backset | 31/32" |
| Case Material | Steel with Corrosion-resistant Plating |
| Case Dimensions | 1" x 6" x depth (varies by bracket) |
| Faceplate Dimensions | 1" x 6-7/8" |
| Mortise Cylinder | Standard 1-5/32" compatibility from either side |
| Locking Bolt | Hexagonal 3/8" flat to flat, stainless steel, 11/16" throw |
| Cylinder Height | 12" with ± 1-1/4" adjustment |
| Strike Compatibility | 1/2" diameter hole suitable for strike |
Tools & Calculators


