Hager 403S Mill Finish Aluminum Saddle Threshold - 4" Width

Hager 403S Mill Finish Aluminum Saddle Threshold - 4" Width

Professional Door Threshold Solution

The Hager 403S saddle threshold delivers reliable door sealing and accessibility compliance with durable aluminum construction. This 4" wide threshold features a low-profile 1/4" height design and mill finish for commercial applications. BHMA certified for handicap accessibility and UL listed for fire-rated applications, ensuring code compliance in demanding environments.

Professional Features & Benefits

• Low-Profile Design: 1/4" (6.4 mm) height provides smooth transition while maintaining accessibility compliance for wheelchair and mobility device users.
• Standard Width: 4" (101.6 mm) width accommodates most standard door frame configurations for versatile installation options.
• Durable Aluminum Construction: Aluminum material provides corrosion resistance and long-term durability for high-traffic commercial applications.
• BHMA Accessibility Certification: BHMA certified handicap accessibility ensures compliance with ADA requirements and accessibility standards.
• Fire-Rated Compliance: UL listed for use in fire-rated door assemblies maintaining building safety and code compliance.
• Optional Non-Slip Surface: Available with Sure-Step non-slip abrasive coating for enhanced safety in wet or high-traffic conditions.
• Manufacturer Warranty: Five-Year Warranty provides long-term protection and confidence in product performance.

Technical Specifications

• Certifications: BHMA Certified Handicap Accessibility
• Commercial/Residential: Commercial
• Fasteners: #10 x 1-1/2” sheet metal screws, other screw types and anchors available upon request
• Finishes: BLA, MIL, DBA
• Fire Rating: UL Listed
• Height: 1/4" (6.4 mm)
• Material: Aluminum
• Notes: MIL finish thresholds are supplied with zinc plated screws; Color anodized thresholds are supplied with screws plated to match
• Options: Available with Sure-Step non-slip abrasive coating
• Subcategory: Door Thresholds
• Warranty: Five-Year Warranty
• Width: 4" (101.6 mm)

Installation & Operation

1. Review manufacturer specifications and verify door frame preparation requirements including width and depth dimensions for proper threshold seating.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door frame and floor surfaces.
3. Prepare installation area by ensuring level, clean surfaces and drilling required holes per manufacturer specifications.
4. Install threshold using provided #10 x 1-1/2" sheet metal screws, ensuring proper alignment and secure attachment to frame and floor.
5. Adjust threshold position for proper door clearance and smooth operation throughout the full range of door movement.
6. Test door operation to verify proper clearance and sealing function. Refer to manufacturer documentation for complete installation details and specifications.

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 Hager Quality?

Hager threshold products deliver professional-grade reliability with durable aluminum construction and BHMA accessibility certification. Five-Year Warranty coverage provides added confidence and protection for commercial installations. Engineered for demanding commercial applications where dependable performance and code compliance are essential.

Support Resources

• Thresholds & Weatherstripping Catalog 2024 (PDF)
• 736 Press-On Weatherstrip Installation Instructions (PDF)
• Thresholds & Weatherstripping Price Book 2025 (PDF)