Hager 3570 Grade 2 Classroom Cylindrical Lever Lock with 2-3/4″ BacksetProfessional Classroom Security SolutionThe Hager 3570 is a Grade 2 classroom cylindrical lever lock designed for standard duty commercial applications. This non-handed lock accommodates door thicknesses from 1-3/8″ to 2″ and features multiple backset options including 2-3/4″, 2-3/8″, 3-3/4″, and 5″. The lock includes a deadlocking latchbolt with 1/2″ throw and stainless steel construction, with UL/cUL listing for up to 3 hours on “A” label single doors and BHMA certification to ANSI A156.2, Series 4000, Grade 2 standards.Professional Features & BenefitsMultiple Backset Options: Available in 2-3/4″, 2-3/8″, 3-3/4″, and 5″ configurations for versatile door preparation compatibility.Door Thickness Range: Accommodates doors from 1-3/8″ to 2″ thick for broad application flexibility.Heavy-Duty Construction: Heavy gauge steel chassis with zinc dichromate coating provides corrosion resistance and long-term durability.Deadlocking Latchbolt: 1/2″ throw stainless steel latchbolt prevents manipulation when door is closed for enhanced security.Fire Rating Compliance: UL/cUL listed for all functions up to 3 hours on “A” label single doors with UL10C positive pressure rating.Grade 2 Certification: BHMA certified to ANSI A156.2, Series 4000, Grade 2 standards for commercial applications.ADA Compliance: Meets ANSI A117.1 Accessibility Code requirements for universal access applications.Lifetime Warranty: Comprehensive lifetime warranty coverage for added confidence and protection.Technical SpecificationsApplications: Standard Duty CommercialBacksets: 2-3/4″ (70mm)Certifications: ADA Compliant ANSI A117.1 Accessibility CodeCommercial/Residential: CommercialCylinder and Keyways: Schlage C – Standard, other keyways optionalDoor Strike: ASA StrikeDoor Thickness: 1-3/8″ – 2″ (35 mm – 51 mm)Exposed Trim: Wrought brass, Bronze, and Stainless steelFinishes: US3, US4, US10B, US26, US26Dand BLKFunctions: Classroom (F84)Grade: Grade 1Handle Type: LeverKeyed: YesLever Options: Archer, August and WithnellLock Chassis: Heavy gauge steel, zinc dichromated for corrosion resistance. Thru-posts are removable. Failure to install thru-posts and screws voids BHMA certification, UL rating, and warrantyLock Type: 1/2″ (13 mm) throw, stainless steelNotes: No exposed mounting screwsOptions: Lead LiningRose Diameter: 3-11/32″ (85 mm)Strikes: 1-1/4″ x 4-7/8″ (32 mm x 124 mm) ASA strikeSubcategory: Cylindrical LocksWarranty: LifetimeInstallation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness from 1-3/8″ to 2″, backset distance, and handing as applicable to this product.Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.Install all mounting hardware including thru-posts and screws per manufacturer torque specifications. Failure to install thru-posts and screws voids BHMA certification, UL rating, and warranty.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 ApplicationsEducational Facilities and ClassroomsCommercial Office BuildingsHealthcare InstitutionsGovernment and Municipal BuildingsMulti-Tenant Residential PropertiesRetail EstablishmentsIndustrial and Warehouse FacilitiesWhy Choose Hager Quality?Hager cylindrical locks deliver professional-grade reliability with heavy gauge steel construction and zinc dichromate coating for corrosion resistance. The lifetime warranty provides comprehensive coverage and protection for demanding commercial applications. Engineered with BHMA Grade 2 certification and UL fire rating compliance, this lock meets the stringent requirements of professional security installations where dependable classroom function is essential.