BEST 45HCA Series Heavy Duty Mortise Lock Body – Double Cylinder Storeroom Function with Field Reversible OperationProfessional-Grade Mortise Lock Body for Commercial Security ApplicationsThe BEST 45HCA Series mortise lock body delivers heavy-duty performance with double cylinder storeroom function and field reversible operation. Featuring a 2-3/4″ backset and 8″ H x 1-1/4″ W x 1/16″ T stainless steel faceplate, this lock body is engineered from 0.095″ cold rolled steel for exceptional strength and durability. ANSI A156.13 Series 1000 Grade 1 Operation and Strength certified with Grade 2 Security rating for demanding commercial applications.Professional Features & BenefitsHeavy-Duty Steel Construction: 0.095″ cold rolled steel case, cover, and armored front provide exceptional strength and durability for high-traffic commercial environments.Field Reversible Design: Reversible latch rotates 180 degrees for easy handing change without opening case, plus four position hub toggle design for flexible installation.Enhanced Security Features: Solid machined cylinder rings with wavy washer provide resistance to cylinder wrenching, plus cylinder security screw prevents core removal.Superior Latch Performance: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for enhanced strength and security.Precision Engineering: Roller bearing hub mechanism ensures smooth, wear-resistant operation with enhanced cycle life and reduced strike wear.ANSI Grade 1 Certified: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength with Grade 2 Security for professional reliability.Self-Aligning Installation: Armored front self-aligns with door bevel during installation, plus self-aligning trim mechanism for fast, accurate setup.Visual Lock Indication: Locking toggle includes clear “locked” and “unlocked” state indication with optional padlock icon visual indicators.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), stile width, and handing as applicable to this mortise lock body.Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the 2-3/4″ backset configuration.Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for the 8″ H x 1-1/4″ W faceplate.Install all mounting hardware and secure the lock body to door per manufacturer torque specifications, utilizing the self-aligning armored front design.Adjust operational components including the four position hub toggle 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 BEST Quality?BEST 45HCA Series mortise lock bodies deliver professional-grade reliability with 0.095″ cold rolled steel construction and ANSI A156.13 Series 1000 Grade 1 certification. The solid one-piece stainless steel anti-friction latch provides 50% more surface contact for superior strength, while roller bearing hub mechanisms ensure smooth, wear-resistant operation. Engineered for demanding commercial applications where dependable security performance is essential.