Marks USA 175T Corridor Lever Lockset — Survivor Series, Clutch Mechanism, ADA Compliant, Grade 1
Part Number: 175T
Marks USA 175T Corridor Lever Lockset — Survivor Series, Clutch Mechanism, ADA Compliant
The 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.
Key Features
- Innovative Clutch Mechanism: When 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.
- Door Thickness Compatibility: Accommodates doors 1-5/8" to 1-7/8" thick; use K1704 spacer for 1-3/8" doors for versatile installation across door types.
- Backset & Latch Specifications: 2-3/4" 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.
- Solid Cast Zamac Levers: Levers are constructed from solid cast Zamac with a 1/2" return (except models 370 & 470), providing exceptional strength and a professional appearance.
- Thru-Bolted Rose Design: 3-1/4" diameter roses are spring-loaded and secured with 2 #10 thru-bolts for a secure, tamper-resistant installation.
- MARKS "C" Keyway Cylinder: 6-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.
- ASA Strike Included: Ships 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.
- ADA Compliant: Lever design meets ADA accessibility requirements, making it suitable for public and commercial facilities requiring accessible hardware.
Certifications & Compliance
- Grade 1 — ANSI/BHMA Certified
- UL Listed
- ADA Compliant
- ANSI Function F87 — Asylum/Institution/Utility
Technical Specifications
- Grade: Grade 1
- Product Group: Mechanical Locks
- Product Subgroup: Bored Locksets
- Product Type: Cylindrical Locks
- Subcategory: Cylindrical Locks
- ANSI/BHMA: ANSI/BHMA, UL Listed
- Commercial/Residential: Commercial
- Function Description: Deadlocking latch bolt operated by key in lever from either side. Both levers are always inoperable.
- ADA Compliant: Yes
- Keyed: Yes
- ANSI Function: F87
- Product Attribute: Cylindrical Locks
- Product Function: Asylum/Institution/Utility
- Door Thickness Range: 1-3/4"
- Strike Classification: ANSI, 1-1/4" x 4-7/8", 1-1/4" Lip, Square Corner
- Product Category: Mechanical Locks
- Department: Door Hardware
Typical Applications
- Asylum and Institutional Facilities
- Healthcare and Hospital Environments
- Educational Institutions and Schools
- Government and Municipal Buildings
- Commercial Office Buildings
- Utility and Maintenance Areas
- Multi-Tenant Residential and Mixed-Use Properties
Why Marks USA 175T?
Marks 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.
Return and Refund Policy
Thank you for shopping at Golden Locks Inc.
If, for any reason, You are not completely satisfied with a purchase We invite You to review our policy on refunds and returns.
The following terms are applicable for any products that You purchased with Us.
Return, Cancellation & Special Order Policy
Golden Locks Inc. sells professional door hardware, security products, and custom-configured items.
Due to the nature of these products, the following policies apply to all purchases made through our website or store. By placing an order with Golden Locks Inc., the customer agrees to the terms outlined below.
Order Changes & Cancellation Policy :
• Customers may request order changes, modifications, or cancellations within 24 hours of placingnan order.
• Requests must be submitted by email to CS@GoldenLocksinc.com.
• After 24 hours, the order may already be processed, allocated from inventory, submitted to thenmanufacturer, entered into production, or prepared for shipment.
• Orders canceled after 24 hours are subject to a minimum 25% restocking and processing fee.
• Golden Locks Inc. reserves the right to refuse cancellation if the order has already been shipped, manufactured, customized, cut, keyed, or assembled.
Custom Orders / Special Orders (Non-Cancelable & Non-Returnable)
• Many products sold by Golden Locks Inc. are custom-configured or special-ordered directly from manufacturers.
• Examples include Emtek configured hardware, Hoppe multipoint trim sets, special finish hardware, multipoint lock components, keyed cylinders, and custom door hardware configurations.
• Once these orders are submitted to the manufacturer, they cannot be canceled, returned, or refunded.
Standard Return Policy (Stock Items Only)
• Return request must be submitted within 30 days of delivery.
• Product must be unused, uninstalled, and in original packaging.
• Approved returns are subject to a 25% restocking fee and deduction of original shipping costs.
• Customer is responsible for return shipping costs.
Non-Returnable Products
• Custom or special-order hardware
• Emtek configured products
• Hoppe trim sets and multipoint hardware
• Keyed locks or cylinders
• Cut keys
• Electronic locks once powered or installed
• Safes once delivered or installed
• Clearance or discounted items
• Items showing signs of installation
Shipping Claims (Damage or Missing Items)
• Customers must inspect shipments immediately upon delivery.
• Claims for damage, missing parts, or incorrect items must be reported within 48 hours of delivery.
• Customers must provide photos of the product, packaging, and shipping label.
Chargebacks & Payment Disputes
• Customers agree to the policies stated on this page when placing an order.
• Golden Locks Inc. may provide order confirmations, shipping confirmations, tracking information, and policy acceptance records to payment processors in the event of disputes.
Return Authorization Required
• All returns require a Return Merchandise Authorization (RMA).
• Unauthorized returns may be refused.
Product Page Notice (Recommended)
• This product may be custom ordered or configured to your specifications.
• Orders may only be canceled or modified within 24 hours.
• After 24 hours a 25% restocking fee applies.
• Custom and special-order items are non-cancelable and non-returnable once processed.
Contacting Us
Please contact us with as much information about your return request as possible. We will need:
- Your order ID.
- First and last name.
- Phone number : +1-800-385-7725
- The items you wish to return (if your order contains multiple items.)
- The reason for your return.
- Any relevant return details or images.
- By visiting this page on our website: https://goldenlocksinc.com/pages/contact-us
Not providing this information may delay your return.
Please email us at CS@GoldenLocksinc.com to authorize a return.
Return Address
Golden Locks Inc.
16371 Gothard Street, Suite G
Huntington Beach, CA 92647
United States
