Adams Rite 4900 Series Heavy Duty Deadlatch with Key-Controlled Bolt Hold-BackProfessional Deadlatch Solution for Flexible Traffic ControlThe Adams Rite 4900 Series Heavy Duty Deadlatch delivers professional-grade security with flexible traffic control capabilities for commercial applications. This Grade 1 deadlatch features a 5/8" x 1" x 5/8" solid brass latchbolt with key-controlled bolt hold-back functionality, allowing two-way traffic control for applications requiring free entrance at certain times and exit-only at others. Designed for 1-3/4" minimum door thickness with steel case construction and corrosion-resistant plating.Professional Features & BenefitsFor narrow stile aluminum and hollow metal doorsStainless steel latchboltStainless steel auxiliary deadlatch pin prevents "loiding"Self-sealing latchbolt constructionField-reversible handingCompatible with 7100 and 7400 Series electric strikesAdaptable faceplateTechnical SpecificationsDoor Application: Narrow stile aluminum, hollow metalLatchbolt: Stainless steel, self-sealingAuxiliary Pin: Stainless steelCompatible Strike: 7100, 7400 UltraLine SeriesHanding: Field reversibleBackset: 1-1/8" or 1-1/2"Installation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.Professional ApplicationsCommercial Office BuildingsEducational FacilitiesHealthcare InstitutionsRetail EstablishmentsIndustrial and Warehouse FacilitiesMulti-Tenant Residential PropertiesGovernment and Municipal BuildingsWhy Choose Adams Rite Quality?Adams Rite deadlatch products deliver professional-grade reliability with steel case construction and corrosion-resistant plating rated for heavy-duty commercial applications. Grade 1 certification and 5 Year Limited warranty provide added confidence for demanding installations. Engineered for demanding commercial applications where dependable performance and flexible traffic control are essential.