Hager 1150 Full Mortise Spring Hinge – Standard Weight Stainless SteelProfessional Self-Closing Door Hardware SolutionThe Hager 1150 Full Mortise Spring Hinge delivers reliable self-closing performance for commercial door applications. Constructed from stainless steel with stainless steel pin, this standard weight spring hinge features 3 knuckles and meets ANSI K51071F certification standards. Available in US32 and US32D finishes with machine fasteners 12-24 x 1/2″ and wood fasteners 12 x 1-1/4″ for versatile installation requirements.Professional Features & BenefitsStainless Steel Construction: Durable stainless steel material with stainless steel pin provides exceptional corrosion resistance and long-term reliability in commercial environments.Full Mortise Design: Both leaves mortise into door and frame for clean, professional appearance and maximum strength in high-traffic applications.Self-Closing Spring Action: Integrated spring mechanism ensures consistent door closure, improving security and energy efficiency while reducing manual operation requirements.ANSI Certified Performance: ANSI K51071F certification ensures compliance with industry standards for commercial door hardware applications.Versatile Fastener Options: Includes both machine fasteners (12-24 x 1/2″) and wood fasteners (12 x 1-1/4″) for compatibility with various door and frame materials.Professional Finish Options: Available in US32 and US32D finishes to complement architectural design requirements and coordinate with other hardware.Standard Weight Rating: Medium duty construction suitable for standard commercial door applications with balanced performance and cost-effectiveness.Optional Configurations: Available with hospital tip (HT) or raised barrel (RBB/RBS) options for specialized applications, with raised barrel maintaining UL approval.Technical SpecificationsANSI/BHMA: ANSIK51071FCertifications: ANSI K51071FCommercial/Residential: CommercialDuty Level: Medium DutyFastener Size – Machine: 12-24 x 1/2″Fastener Size – Wood: 12 x 1-1/4″Features: Full Mortise, Spring Hinge, Standard WeightFinishes: US32, US32DKnuckles: Fastener Size – Machine : 1 2-24 x 1/2″Material: Stainless Steel with Stainless Steel Pin.Notes: Strong wind conditions, drafts, carpeting drag, twisted/misaligned frames, or weatherstripping on doors may require additional spring hinges.Options: Available with hospital tip (HT) – voids UL.Subcategory: Full Mortise HingesInstallation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness, frame compatibility, and handing for proper spring hinge installation.Use manufacturer-provided templates to mark mortise locations accurately on both door and frame surfaces for full mortise installation.Prepare door and frame by routing mortise pockets to specified depth and drilling pilot holes for fasteners per manufacturer instructions.Install hinges using appropriate fasteners: 12-24 x 1/2″ machine screws for metal applications or 12 x 1-1/4″ wood screws for wood frame installations.Adjust spring tension as needed for proper door closure, noting that full spring tension may not be required on all hinges in multi-hinge installations.Test door operation to verify smooth swing and consistent self-closing action. Make final adjustments considering environmental factors such as wind conditions, carpeting drag, or weatherstripping resistance. 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 Hager Quality?Hager spring hinges deliver professional-grade reliability with stainless steel construction and ANSI K51071F certification for demanding commercial applications. Manufactured in accordance with ANSI/BHMA A156.1 and A156.17 standards, these hinges provide consistent self-closing performance where dependable door operation is essential. Hagers reputation as the industrys premiere designer and manufacturer of architectural hinges ensures quality that meets or exceeds industry standards.