FB358 TOP OR BOTTOM BOLTS
- When the active door is opened, the lever can be moved to the ‘up’ position, retracting the bolt and allowing the inactive leaf to be opened. When the inactive leaf is closed, the lever can be moved to the ‘down’ position, projecting the bolt into the strike and securely locking the inactive leaf
- Reduces installation costs; requires only simple router mortise at top and bottom corners of doors;
- Door strength and rigidity maintained by tying door faces to reinforcing extensions on guide with machine screws and bearing washers, not supplied;
- Non-handed;
- Bolt tip 1/2" diameter;
- Bolt throw is 3/4" with a 7/8" vertical adjustment;
- Bolt backset is 3/4";
- Not available for rabbeted door installations.
- 8 x 1" FPHSMS
- 8 x 3/4" FPHSMS
- Available in both automatic and manual styles
- Designs for both hollow metal and wood door applications
- Variety of bolt throw lengths and bolt diameters to meet many application needs
- Flush bolts are non-handed for easy installation
- Meet ANSI/BHMA A156.3
- UL Listed for fire door applications
- Automatic flush bolt: Fully automatic flush bolts ensure the inactive door is latched and bolts are extended when the active door closes. The inactive door is unlatched and the bolts retract when the active door is opened.
- Constant latching flush bolt: Constant latching flush bolts ensure the inactive door remains latched until the active door is opened, releasing the automatic bottom bolt and then the top bolt can be manually released. The inactive door will re-latch automatically when the door closes.
- Manual flush bolt: Manual flush bolts must be extended and retracted manually, depending on when the inactive leaf needs to be secured or opened.
- Flush bolts come in many BHMA standard finishes
- Custom finishes are available as an engineering special; consult Customer Service
- Please refer to the Ives Full Line catalog for finishes offered on specific product series
Manufacturer Resources
Product Specs
- Subcategory:
- Flush Bolts and Coordinators
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Flush Bolts
- Product Type:
- Flush Bolts
- ANSI/BHMA:
- ANSI A156.16, L04261
- Commercial/Residential:
- Commercial
- UL Listing Type:
- UL Listed 90 Minutes
- Product Model:
- FB358
- Product Dimension:
- 1" x 6-3/4" x 1-3/8"
- Fire Rating:
- Yes
- Door Strike:
- 15/16" x 2-1/4" x 5/64"
- Product Category:
- Door Trim and Accessories
- Product Substrate:
- Brass
Ives FB358 US26D – Frequently Asked Questions
1) What is the Ives FB358 flush bolt used for?
The FB358 is a manual flush bolt designed to secure the top or bottom of double doors. It provides positive locking when one door leaf needs to remain stationary while the other operates as the active door.
2) Can this flush bolt work on both top and bottom door positions?
Yes, the FB358 is designed for installation at either the top or bottom of the door. The same hardware accommodates both positions with proper mounting orientation.
3) What door thickness does the FB358 accommodate?
Verify the door thickness compatibility with the manufacturer specifications. Most Ives flush bolts accommodate standard commercial door thicknesses, typically 1-3/4" to 2-1/4".
4) Is this flush bolt suitable for fire-rated door assemblies?
Check the product labeling and fire rating documentation. Fire-rated applications require specific listings and proper installation per the manufacturer's fire rating requirements.
5) What finish options are available for the FB358?
The FB358 is available in multiple finishes to match door hardware. Common options include satin chrome, oil rubbed bronze, and bright brass. Verify available finishes for your specific model.
6) Does this flush bolt meet ADA accessibility requirements?
Manual flush bolts on inactive door leaves typically do not conflict with ADA requirements since they're not part of the primary egress path. Consult local codes for specific accessibility compliance.
7) What tools are needed for FB358 installation?
Installation typically requires a drill, appropriate drill bits, chisel, screwdriver, and measuring tools. Follow the manufacturer's template for precise mortising and hole locations.
8) How do you adjust the bolt throw on the FB358?
The bolt throw is typically factory-set for standard applications. Field adjustments may be limited. Ensure proper strike alignment and door gap clearances during installation for optimal operation.
9) Can the FB358 be used with automatic door operators?
This manual flush bolt is designed for inactive door leaves. If automatic operation is needed, consider electric flush bolts that integrate with access control systems and automatic operators.
10) What are common alternatives to the FB358 flush bolt?
Alternative solutions include other door hardware options like surface bolts, coordinator systems, or electric flush bolts depending on operational requirements and security needs.
11) How do you maintain the FB358 flush bolt?
Regular maintenance includes cleaning debris from bolt channels, light lubrication of moving parts, and checking mounting screw tightness. Avoid over-lubrication which can attract dirt buildup.
12) What door weight capacity does the FB358 support?
Verify door weight specifications with manufacturer documentation. Proper installation and adequate door frame reinforcement are essential for supporting heavier commercial doors safely.
How fast can I get the Ives FB358 US26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ives FB358 US26D come with a warranty?
Absolutely. The Ives FB358 US26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ives FB358 US26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Ives FB358 US26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.