1858 – Universal Fire Bolt - Wood and Metal Doors
Universal bottom fire bolt compatible with both wood and metal doors providing thermal fire protection without floor preparation.
Key Features
- Universal Design
- Wood & Metal Doors
- Bottom Fire Bolt
- Thermal Protection
- When Subjected to 230°F, Plug and Black Plastic Cover Melt to Allow Bolt to Project, Locking Leaves Together
- UL Listed Only When Used With Automatic Top Bolt
Additional Information
Universal design provides fire protection flexibility for various door types.
Technical Specifications
| Material | Bottom Fire Bolt: Stainless Steel / Flush Bolt: Brass |
| Finishes | US3, US4, US10, US10B, US26D, US32, US32D, S4/BSPC, Custom Finishes Available |
| Fire Protection | Thermal activation for fire safety |
1870 – Dust Proof Strike - Floor Mount - with Removable Section
Floor-mounted dust proof strike with removable section designed for use with all ABH manual and automatic flush bolts providing maintenance-free operation.
Key Features
- Dust Proof Design
- Adjustable Height For Use With Carpets
- Spring-Loaded Plunger
- Maintenance Free, Eliminates Need to Clean Standard Floor Strikes
- Compatible with All Bottom Mounted ABH Manual and Automatic Flush Bolts
- Meets or exceeds ANSI/BHMA A156.16, Type L04021
Additional Information
Self-cleaning design with spring-loaded plunger provides reliable operation while eliminating maintenance requirements.
Technical Specifications
| Material | Stainless Steel |
| Finishes | US3, US4, US9, US10, US10B, US26, US26D, US32, US32D, Custom Finishes Available |
| Strike Hole | 3/4" diameter |
| Mounting Type | Floor mount with removable section for threshold use |
| Operation | Spring-loaded plunger depressed when flush bolt thrown, returns automatically when retracted |
| Weight | 0.5 lbs. average per unit |
Available Options
- SEC – Security Fasteners For All Exposed Areas
Documents & Spec Sheets
Cut Sheets
- 1858 Cut Sheet (PDF)
- 1870 Cut Sheet (PDF)
Templates
- 1858 Universal Bottom Fire Bolt for Wood & Metal Doors Template (PDF)
- 1870 Dust Proof Strike, Floor Mount Template (PDF)
Product Selection Tools
- Flush Bolts Line Card (PDF)
- Cross Reference 2025 (PDF)
Forms
Models
- 1858 – Universal Fire Bolt for Metal or Wood Door
- 1870 – Dust Proof Strike
Pricing per ABH Price List No. 15. Contact us for custom sizes and options.