Marks USA 5 Grade 1 Mortise Lock Body Only with Stainless Steel Construction and Lifetime Mechanical WarrantyThe Marks USA 5 Grade 1 Mortise Lock Body Only is a commercial-grade mechanical lock engineered to meet the rigorous demands of high-traffic door applications. Manufactured in Amityville, New York, USA, this mortise lock body complies with ANSI-A156.13 Grade 1 specifications and carries a Underwriters Laboratories 3-Hour Fire Rating, making it a trusted choice for code-compliant commercial installations. Available in both 2-1/2″ and 2-3/4″ backset configurations, the lock features stainless steel bolts, latches, and independent lever support springs, delivering exceptional durability and long-term reliability. BHMA Certified and backed by a Lifetime Mechanical Warranty, this 195 Series mortise lock body is built to perform in the most demanding commercial environments.Key FeaturesDual Backset Availability: Available in 2-1/2″ and 2-3/4″ backset configurations to accommodate a wide range of door preparations and installation requirements.Stainless Steel Internal Components: Stainless steel bolts, latches, and independent lever support springs on lever sets provide superior corrosion resistance and long-term mechanical reliability.Lever Support Springs with 5/16″ Hubs: Integrated lever support springs with 5/16″ hubs ensure consistent lever return and smooth operation throughout the product’s service life.Front Size: 1-1/4″ x 8″ front plate provides a clean, professional finish and precise fit for standard mortise door preparations.Strike Classification: Compatible with 4-7/8″ strike for secure and reliable door latching in commercial applications.ANSI Function F01: Configured to ANSI Function F01 for straightforward integration into standard commercial door hardware specifications.USA Manufactured: Made in Marks USA’s own plant in Amityville, New York, ensuring consistent quality control and domestic craftsmanship.Lifetime Mechanical Warranty: Backed by a Lifetime Mechanical Warranty, providing long-term confidence and protection for commercial building owners and facility managers.Certifications & ComplianceANSI Grade 1 Meets ANSI-A156.13 specificationUnderwriters Laboratories (UL) 3-Hour Fire RatingBHMA CertifiedANSI/BHMA and UL ListedLifetime Mechanical WarrantyTechnical SpecificationsSeries: 195 SeriesFeatures: Lever Support Springs With 5/16″ HubsProduct Group: Mechanical LocksProduct Subgroup: Bored LocksetsProduct Type: Mortise LocksSubcategory: Cylindrical LocksANSI/BHMA: ANSI/BHMA, UL ListedCommercial/Residential: CommercialFront Size: 1-1/4″ x 8″ANSI Function: F01Product Attribute: Mortise LocksElectronic: NoStrike Classification: 4-7/8″Product Category: Mechanical LocksDepartment: Door HardwareTypical ApplicationsCommercial Office BuildingsEducational Facilities and SchoolsHealthcare Institutions and HospitalsRetail Establishments and Shopping CentersGovernment and Municipal BuildingsIndustrial and Warehouse FacilitiesMulti-Tenant Residential and Mixed-Use PropertiesWhy Marks USA 195 Series?Marks USA 195 Series mortise lock bodies are manufactured in-house in Amityville, New York, with stainless steel bolts, latches, and independent lever support springs that meet ANSI-A156.13 Grade 1 standards and carry a UL 3-Hour Fire Rating. Engineered for demanding commercial applications, these locks deliver the professional-grade performance and code compliance that facility managers, architects, and security professionals require.