Ives FB32 Automatic Top Bolt with Auxiliary Fire Latch - 3/4" Throw Non-Handed

Ives Automatic Top Bolt with Auxiliary Fire Latch - 3/4" Throw Non-Handed

Professional Automatic Flush Bolt Solution for Metal Door Applications

The Ives FB32/FB33 automatic top bolt with auxiliary fire latch provides fully automatic operation for metal door applications where bottom bolt elimination is required. This non-handed flush bolt features a 3/4" bolt throw with 7/8" vertical adjustment and 3/4" backset, designed specifically for use with metal doors only. The FB32 model eliminates the bottom bolt with auxiliary fire latch, while the FB33 includes a retrofit plate to cover existing bottom bolt preparation.

Professional Features & Benefits

• Automatic Operation: Fully automatic system ensures inactive door is latched and bolts are extended when active door closes, with automatic retraction when active door opens.
• Precise Bolt Specifications: 3/4" bolt throw with 7/8" vertical adjustment and 3/4" backset for reliable engagement with door frame.
• Low Actuation Forces: Top bolt design with no spring tension reduces operating effort for smooth, effortless operation.
• Fire Safety Compliance: Auxiliary fire latch design eliminates bottom bolt while maintaining fire door compatibility and UL listing.
• Retrofit Capability: FB33 model includes retrofit plate to cover existing bottom bolt preparation for easy upgrades.
• Non-Handed Design: Universal installation eliminates field determination requirements and reduces inventory needs.
• Standard Rod Configuration: 12" standard rod length measured from center of flush bolt body to bolt tip accommodates typical door applications.
• ANSI/BHMA Compliance: Meets ANSI A156.3 Type 25 standards for commercial flush bolt applications.

Technical Specifications

• ANSI/BHMA: ANSI A156.3 Type 25
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Hand Direction: Non-Handed
• Product Category: Door Trim and Accessories
• Product Dimension: W: 1", L: 6-3/4", D: 2"
• Product Group: Door Trim and Accessories
• Product Model: FB32/FB33
• Product Subgroup: Flush Bolts
• Product Substrate: Brass or Stainless Steel
• Product Type: Flush Bolts
• Subcategory: Flush Bolts and Coordinators

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness and metal door construction compatibility for this flush bolt system.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door edge and verify clearance for 6-3/4" length and 2" depth requirements.
3. Prepare door edge by routing flush bolt pocket and drilling required holes per manufacturer specifications for proper bolt body installation.
4. Install flush bolt body into prepared pocket ensuring proper alignment with 3/4" backset and verify 7/8" vertical adjustment range.
5. Adjust bolt throw to achieve proper 3/4" extension and verify smooth automatic operation throughout full cycle of active door movement.
6. Test automatic latching sequence to verify inactive door latches when active door closes and unlatches when active door opens. Refer to manufacturer documentation for complete installation details and adjustment procedures.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Ives Quality?

Ives flush bolt systems deliver professional-grade reliability with brass or stainless steel construction and UL listing for fire door applications. ANSI/BHMA A156.3 Type 25 compliance ensures consistent performance in demanding commercial environments. Engineered for metal door applications where dependable automatic operation and fire safety compliance are essential.