BEST 45H Series Heavy Duty Mortise Lock with Rose Trim – Office Function Single CylinderProfessional Grade 1 Mortise Lock SolutionThe BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with office function operation and elegant rose trim design. Engineered with a solid one-piece stainless steel anti-friction latch providing 50% more surface contact with strike, this Grade 1 mortise lock features 2-3/4″ backset and is designed for doors 1-3/4″ thick. The lock meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards with Grade 2 Security rating for demanding commercial applications.Professional Features & BenefitsEnhanced Latch Design: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security with precision-engineered curve for enhanced cycle life.Heavy-Duty Construction: Case, cover, and armored front manufactured from 0.095″ cold rolled steel with zinc dichromate plating for exceptional durability and corrosion protection.Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength certification with Grade 2 Security rating for commercial applications.Reversible Operation: Non-handed design with reversible latch that rotates 180 degrees for easy handing change without opening case, plus four position hub toggle design.Roller Bearing Mechanism: Roller bearing hub mechanism provides smooth, wear-resistant operation with lever return spring mechanism in trim for enhanced protection against lever droop.Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.Enhanced Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch for maximum structural integrity.Cylinder Security Features: Solid machined cylinder rings with wavy washer provides resistance to wrenching, plus cylinder security screw prevents removal without first removing interchangeable core.Technical Specifications45H Series The design and operation of the BEST mortise lock meets the intent of the standard for ANSI A117.1 section 404.2.6.Builders Hardware Manufacturers Association:45H Series ANSI A156.13, Series 1000, Grade 1 Operation and Strength, Grade 2 Security. To meet Grade 1 Security, a drill resistant core (1CD, 1CDP, 1CDF, or 1CDX) must be used with escutcheon trims, and 1EK7K4 high security cylinder must be used with sectional trims.47H Series ANSI A156.13, Series 1000, Grade 1 Operational, Strength, and SecurityAuxiliary bolt Stainless steel, non-handed.Backset 2-3/4″Case 0.095 cold rolled steel, 5- 7/8″ H x 7/8″ D x 4-1/16″ W. Steel is zinc dichromate plated for corrosion protection.Deadbolt Stainless steel, 1″ throw.Latchbolt Solid stainless steel, 3/4″ throw. Latch is oil-impregnated for anti-friction operation. Reversible without opening case.Strike For complete strike package specs see page 5.Door Thickness Standard lock configuration designed for doors 1-3/4″ thick. Thick door configuration available for doors up to 5″ thick (specify thickness when ordering).Faceplate Stainless steel, brass or bronze material, 8″ H x 1-1/4″ W x 1/16″ T. Lock face automatically adjusts to proper bevel during installation.Products protected by one or more of the following patents: 4,873,853 5,590,555 5,794,472Finishes 605 – bright brass, clear coated 606 satin brass, clear coated 611 bright bronze, clear coated 612 satin bronze, clear coated 613* oxidized satin bronze, oil rubbed 618 bright nickel plated, clear coated (brass base material) 619 satin nickel plated, clear coated (brass base material) 622 flat black coated (brass base material) 625 brightchromium plated (brass base material) 626 satin chromium plated (brass base material) 629 bright stainless steel 630 satin stainless steel 690* dark bronze coated (brass base material)*613 finish is designed to wear over time, providing an antique appearance.*690 finish will continue as a dark brown appearance over time.Antimicrobial Finish 626AM satin chrome plated with UltraShield antimicrobial protected coating 630AM satin stainless steel with UltraShield antimicrobial protected coatingThe BEST UltraShield finish inhibits the growth of bacteria and other microbes on the surface of the hardware.NOTE: BEST UltraShieldTM option is recommended for use on any hardware application where product cleanliness is a high priority. i.e;. Hospital/Healthcare, Elderly Care, Education, Transportation, Food-Service, Hospitality.Installation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness (standard 1-3/4″ or up to 5″ thick door configuration), 2-3/4″ backset, and handing as applicable to this product.Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for mortise lock preparation.Prepare door and frame by drilling required holes and routing mortise cavity as specified in manufacturer instructions for proper lock body fit.Install lock body in mortise cavity and secure with provided mounting hardware per manufacturer torque specifications, ensuring armored front self-aligns with door bevel.Install rose trim assembly and adjust operational components including four position hub toggle for proper alignment, latching, and smooth lever operation throughout full range of motion.Test lock operation including latch and deadbolt function, verify proper cylinder operation, 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 BEST Quality?BEST 45H Series mortise locks deliver professional-grade reliability with 0.095″ cold rolled steel construction and solid stainless steel components engineered for demanding commercial applications. The precision roller bearing hub mechanism and enhanced case integrity design with four corner screws ensure dependable performance where security and durability are essential. ANSI A156.13 Grade 1 certification and anti-friction latch technology provide the professional-grade performance required for high-traffic commercial environments.