{"product_id":"marks-usa-175t-corridor-lever-lockset-survivor-series-clutch-mechanism-ada-compliant-grade-1","title":"Marks USA 175T Corridor Lever Lockset — Survivor Series, Clutch Mechanism, ADA Compliant, Grade 1","description":"\u003cp\u003e\u003cstrong\u003ePart Number: 175T \u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row margin-bottom-30\"\u003e\n\u003cdiv class=\"col-sm-12\"\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eMarks USA 175T Corridor Lever Lockset — Survivor Series, Clutch Mechanism, ADA Compliant\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Marks USA 175T is a Grade 1 Survivor Series Corridor Lever Lockset engineered for demanding commercial environments where durability and low maintenance are essential. Featuring a unique clutch mechanism, the levers disengage from the retractor and interior lock components when locked, allowing them to swing freely without resistance — eliminating lever droop and dramatically reducing wear on internal components. Designed for doors 1-5\/8\" to 1-7\/8\" thick (with optional K1704 spacer for 1-3\/8\" doors), this cylindrical lockset ships with a 2-3\/4\" backset and a MARKS \"C\" keyway 6-pin cylinder with 2 keys. ANSI\/BHMA certified and UL Listed, it meets the rigorous demands of asylum, institution, and utility applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnovative Clutch Mechanism:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen locked, levers disengage from the retractor and interior mechanisms, allowing free swing without resistance — eliminating lever droop and reducing long-term wear on lock components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor Thickness Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAccommodates doors 1-5\/8\" to 1-7\/8\" thick; use K1704 spacer for 1-3\/8\" doors for versatile installation across door types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackset \u0026amp; Latch Specifications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2-3\/4\" backset with Latch #1134 featuring a 1-1\/8\" x 2-1\/4\" front, 1\/2\" throw, and stainless steel nose for reliable latching performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Cast Zamac Levers:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLevers are constructed from solid cast Zamac with a 1\/2\" return (except models 370 \u0026amp; 470), providing exceptional strength and a professional appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThru-Bolted Rose Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3-1\/4\" diameter roses are spring-loaded and secured with 2 #10 thru-bolts for a secure, tamper-resistant installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMARKS \"C\" Keyway Cylinder:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e6-pin cylinder with MARKS \"C\" keyway and 2 keys included; ANSI Function F87 — deadlocking latch bolt operated by key in lever from either side with both levers always inoperable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASA Strike Included:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eShips with Strike #1145 ASA strike, classified ANSI 1-1\/4\" x 4-7\/8\", 1-1\/4\" lip, square corner for standard door frame compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADA Compliant:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLever design meets ADA accessibility requirements, making it suitable for public and commercial facilities requiring accessible hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eCertifications \u0026amp; Compliance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGrade 1 — ANSI\/BHMA Certified\u003c\/li\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003eADA Compliant\u003c\/li\u003e\n\u003cli\u003eANSI Function F87 — Asylum\/Institution\/Utility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGrade 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Group:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMechanical Locks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Subgroup:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBored Locksets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCylindrical Locks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubcategory:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCylindrical Locks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI\/BHMA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eANSI\/BHMA, UL Listed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial\/Residential:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCommercial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction Description:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeadlocking latch bolt operated by key in lever from either side. Both levers are always inoperable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADA Compliant:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Function:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eF87\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Attribute:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCylindrical Locks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Function:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAsylum\/Institution\/Utility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor Thickness Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrike Classification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eANSI, 1-1\/4\" x 4-7\/8\", 1-1\/4\" Lip, Square Corner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMechanical Locks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepartment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDoor Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAsylum and Institutional Facilities\u003c\/li\u003e\n\u003cli\u003eHealthcare and Hospital Environments\u003c\/li\u003e\n\u003cli\u003eEducational Institutions and Schools\u003c\/li\u003e\n\u003cli\u003eGovernment and Municipal Buildings\u003c\/li\u003e\n\u003cli\u003eCommercial Office Buildings\u003c\/li\u003e\n\u003cli\u003eUtility and Maintenance Areas\u003c\/li\u003e\n\u003cli\u003eMulti-Tenant Residential and Mixed-Use Properties\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eWhy Marks USA 175T?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eMarks USA 175T Survivor Series locksets are built around a patented clutch mechanism that sets them apart from conventional cylindrical lever locks — when locked, levers disengage entirely from internal components, eliminating the wear, lever droop, and maintenance cycles that plague standard lever sets. Constructed with solid cast Zamac levers, thru-bolted roses, and a stainless steel latch nose, the 175T delivers Grade 1, ANSI\/BHMA-certified, UL Listed performance engineered for the most demanding commercial and institutional applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marks USA","offers":[{"title":"Satin Chrome","offer_id":48271473541341,"sku":"175T-26D","price":160.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0292\/0123\/6108\/files\/2249524_source_1784812815.jpg?v=1785246032","url":"https:\/\/goldenlocksinc.com\/products\/marks-usa-175t-corridor-lever-lockset-survivor-series-clutch-mechanism-ada-compliant-grade-1","provider":"Golden Locks Inc","version":"1.0","type":"link"}