Ives Forged Brass Door Knocker with UL Listed Fire Door Viewer - Dual Door Thickness Models

Ives Forged Brass Door Knocker with UL Listed Fire Door Viewer - Dual Door Thickness Models

Professional Door Security and Communication Solution

The Ives forged brass door knocker with integrated UL listed viewer combines traditional door communication with modern security viewing capability. This dual-function hardware accommodates door thicknesses from 7/8" to 2-1/8" with two model options: 02-31251U for 7/8" - 1-9/16" doors and 02-31252U for 1-5/8" - 2-1/8" doors. The solid brass construction with glass lens provides durability for residential applications, while UL 90-minute fire door listing ensures code compliance for fire-rated installations.

Professional Features & Benefits

• Dual Door Thickness Compatibility: Model 02-31251U accommodates 7/8" - 1-9/16" door thickness, while 02-31252U fits 1-5/8" - 2-1/8" doors for versatile installation options.
• UL Fire Door Rating: UL listed 90-minute fire door certification ensures compliance with fire safety codes and building requirements.
• Forged Brass Construction: Solid brass body with glass lens provides exceptional durability and weather resistance for exterior door applications.
• Tamper-Resistant Installation: Secure one-way thread installation prevents unauthorized removal and ensures long-term security.
• Dual Functionality: Combines traditional door knocker communication with safe viewing capability to identify visitors before opening the door.
• Simple Through-Door Installation: Viewer bolts directly through the door for straightforward installation without complex mounting requirements.
• Optional Security Enhancements: Compatible with viewer covers that rotate out of the way for viewing access while preventing unauthorized viewing when closed.
• Expandable Design: Viewer extensions available in 3/8" increments to accommodate any door thickness beyond standard ranges.

Technical Specifications

• ANSI/BHMA: ANSI/BHMA A156.16, L23161
• Commercial/Residential: Residential
• Department: Door Hardware
• Features: Has Viewer
• Product Category: Door Trim and Accessories
• Product Dimension: 5-15/16"x 3" x 1-1/16"
• Product Group: Door Trim and Accessories
• Product Model: 02-31251U/31252U
• Product Subgroup: Door Knockers and Viewers
• Product Substrate: Brass
• Product Type: Door Knockers with Viewers
• Subcategory: Exterior Hardware

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness compatibility with selected model (02-31251U for 7/8" - 1-9/16" or 02-31252U for 1-5/8" - 2-1/8").
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for through-door installation.
3. Prepare door by drilling required holes as specified in manufacturer instructions for viewer bolt-through installation.
4. Install viewer component through door opening and secure with one-way thread installation for tamper resistance.
5. Mount door knocker component to exterior door surface ensuring proper alignment with viewer assembly.
6. Test viewer operation for clear sight lines and knocker function for proper sound transmission. Refer to manufacturer documentation for complete installation details and optional accessory integration.

Professional Applications

• Residential Front Door Security
• Multi-Unit Residential Properties
• Apartment and Condominium Complexes
• Single-Family Home Entrance Doors
• Fire-Rated Door Applications
• Historic Building Restoration Projects
• Custom Home Construction

Why Choose Ives Quality?

Ives door knockers and viewers deliver professional-grade reliability with forged brass construction and UL 90-minute fire door certification for demanding residential applications. The tamper-resistant one-way thread installation and solid brass body with glass lens ensure long-term durability and security. Engineered to handle exterior elements while providing essential door communication and security viewing functionality.