Marks USA MAR130S 130S Classro...
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$138.28
$72.80
Marks USA 130S Deadbolt Classroom, Marks C Keyway, 6 Pin, Keyed Different, 2-3/4in Backset, Grade 1

Marks USA MAR130S 130S Classroom Deadbolt — Marks C Keyway, 6 Pin, Keyed Different, 2-3/4" Backset, Grade 1

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Model: 130S/3-4C
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$72.80
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Marks USA 130S Classroom Deadbolt — Marks C Keyway, 6 Pin, Keyed Different, 2-3/4" Backset, Grade 1

The Marks USA 130S is a commercial-grade classroom function deadbolt engineered for demanding institutional environments. Rated ANSI 156.5 Grade 1, this single-cylinder deadbolt features a Marks "C" keyway with a 6-pin cylinder and ships keyed different with 2 keys included. Designed for doors with a 2-3/4" backset and door thickness range of 1-3/8" to 1-7/8", it installs into a standard 2-1/8" bore and accepts most conventional, high-security, and IC core cylinders from leading manufacturers. The unitized assembly and tapered cylinder collar construction deliver reliable security and resistance to forced-entry attempts.

Key Features

  • ANSI 156.5 Grade 1 Rated: Meets ANSI 156.5 Grade 1 standards for commercial-grade deadbolt performance in high-traffic institutional applications.
  • Classroom Function (S): Single-cylinder deadbolt with classroom function — cylinder outside, thumbturn inside — ideal for securing classroom and institutional doors.
  • Precise Backset & Door Compatibility: Designed for a 2-3/4" backset with door thickness range of 1-3/8" to 1-7/8" and installs into a standard 2-1/8" bore for straightforward retrofits.
  • 1" Bolt Throw: Full 1" deadbolt throw provides robust locking engagement with the included #1335 strike (2-3/4" x 1-1/8").
  • 1" x 2-1/4" Latch Front: Precisely sized latch front for clean, professional installation on standard door preparations.
  • Broad Cylinder Compatibility: Accepts Medeco, Kaba, Multilock, ASSA, and other high-security cylinders, as well as most conventional cylinders and IC core models for "Best" size cores.
  • Tapered Cylinder Collar: Tapered cylinder collar design prevents break-in attempts by wrenching, enhancing forced-entry resistance.
  • Steel Shutter System: Integrated steel shutter system eliminates access to mounting screws when the door is locked, protecting against tampering.
  • Multiple Available Functions: Available in K (Cylinder x Turnpiece), L (Communicating Single Cylinder), M (Double Cylinder), S (Classroom), and X (Turnpiece x Blank Plate) configurations.
  • Finish Options: Available in Bright Brass (3), Stainless Steel (32D), and Dark Bronze (10B) to suit a variety of architectural requirements.

Certifications & Compliance

  • ANSI 156.5 Grade 1 (Deadbolt)
  • ANSI 156.5 Grade 1, UL Fire Rated 3 Hours (Deadlatch models)
  • Commercial Grade

Technical Specifications

  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Subcategory: Cylindrical Locks
  • Commercial/Residential: Commercial
  • Keyed: Yes
  • Function Description: Single Cylinder Deadbolt
  • Product Function: Cylinder x Thumbturn
  • Latch Type Specification: Deadlocking
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • K-12 and Higher Education Classroom Doors
  • Healthcare and Medical Facility Rooms
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Institutional and Correctional Facilities
  • Multi-Tenant Residential and Mixed-Use Properties
  • Retail and Hospitality Establishments

Why Marks USA 130S?

Marks USA 130S deadbolts are built to ANSI 156.5 Grade 1 standards with a unitized assembly, tapered cylinder collar, and integrated steel shutter system that together resist forced entry and tampering in the most demanding commercial environments. The broad cylinder compatibility — spanning conventional, high-security, and IC core options from Medeco, Kaba, Multilock, ASSA, and others — makes the 130S a highly adaptable solution for facilities requiring flexible keying and access control strategies.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Latch Front:
1” x 2-1/4”
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Subcategory:
Cylindrical Locks
Commercial/Residential:
Commercial
Keyed:
Yes
Function Description:
Single Cylinder Deadbolt
Product Attribute:
Deadbolts
Product Function:
Cylinder x Thumbturn
Latch Type Specification:
Deadlocking
Keyway Profile:
Marks C
Product Material:
Stainless Steel
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Marks USA 130S/3-4C – Frequently Asked Questions

1) Will the Marks 130S deadbolt latch into the strike that is already in my frame?
It throws a full 1 inch bolt and ships with the #1335 strike measuring 2-3/4 by 1-1/8 inches, with a 1 by 2-1/4 inch latch front on the door edge. A 1 inch throw needs a strike box deep enough to take it; an existing shallow residential strike pocket will bottom the bolt out. If your frame is already prepped for an ANSI strike at those dimensions, the included #1335 goes straight in.
2) What does classroom function mean on a Marks 130S deadbolt, and how is it different from the other 130 functions?
Classroom function (the S suffix) is a single cylinder deadbolt: key cylinder on the corridor side, thumbturn on the room side. A teacher can throw or retract the bolt from inside without a key, and it can be keyed or unkeyed from the hallway. The 130 family also comes in K (cylinder by turnpiece), L (communicating single cylinder), M (double cylinder, key both sides), and X (turnpiece by blank plate, no key at all). Pick M where the door is beside glass and you do not want someone reaching through to a turn, and X where you only need to secure from inside.
3) Can I key the Marks 130S into my building's existing Medeco or Best SFIC system?
Yes. The 130S accepts most conventional cylinders plus high security cylinders from Medeco, Kaba, Multilock and ASSA, and it takes IC cores in the Best size. As shipped it comes with a 6 pin Marks C keyway cylinder, keyed different, with 2 keys. If you are standardizing a facility on one core, order it and swap the cylinder to whatever your system already uses rather than running a second key system for the deadbolts.
4) Is the Marks 130S deadbolt Grade 1, and is that what my school or hospital spec calls for?
The 130S is rated ANSI 156.5 Grade 1, the top commercial tier for deadbolt performance, and it is a commercial product rather than a residential one. If a drawing calls for Grade 1 auxiliary deadlocks on classroom or patient room doors, this meets that line. Most of the deadbolts sitting next to it are Grade 2 or Grade 3, for example the Arrow DBX61 and the Cal-Royal CB160 are both Grade 2 and the Cal-Royal LSD is Grade 3, so check what number the spec actually names before substituting down.
5) Which deadbolt covers the same 1-3/8 inch to 1-7/8 inch door thickness range as the Marks USA 130S?
The Dexter DB1000 single cylinder deadbolt is Grade 1, cylinder x thumbturn, with a published door thickness range of 1-3/8 inch to 1-7/8 inch - the same span the Marks USA 130S covers. The Dexter DB1000 double cylinder version carries the same 1-3/8 inch to 1-7/8 inch range if the opening needs a key on both sides instead of a thumbturn.
6) What Grade 1 deadbolt should be used instead of a Marks USA 130S on a labeled fire door?
The Cal-Royal CRB800 is a heavy duty single cylinder deadbolt described as Grade 1 with a UL 3-hour fire rated latch, cylinder x thumbturn. Hager also carries a fire rated line in this format: the 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder, carrying a fire rating, on 1-3/8 inch to 1-3/4 inch doors.
7) For a facility standardizing on small format interchangeable core, what deadbolt substitutes for a Marks USA 130S?
The Arrow E61 26D IC is a Grade 2 single cylinder deadlock supplied with SFIC prep less core, on doors 1-3/8 inch to 1-3/4 inch. The Deltana CL200LAIC is a Grade 2 single deadbolt for interchangeable core, non-cylinder, on a 2-3/4 inch backset - the same backset the Marks USA 130S uses. The Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D. The Marks USA 130S ships with a Marks C 6-pin cylinder and accepts IC core models for Best size cores.
8) Is the Corbin Russwin DL3011 a drop-in substitute for a Marks USA 130S?
No. The Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock in a cylinder x blank configuration, meaning there is no thumbturn on the inside face, and it is built for 1-3/4 inch to 2-1/4 inch doors. The Marks USA 130S is a cylinder x thumbturn deadbolt on 1-3/8 inch to 1-7/8 inch doors with a 2-3/4 inch backset. If the inside of the door must retract the bolt without a key, the DL3011 does not do it.
9) Do the Marks 130S deadbolts come keyed alike if I am ordering several for the same building?
As catalogued the 130S ships keyed different, with 2 keys per lock in the Marks C 6 pin keyway. That means every door gets its own key out of the box. For a floor or a wing that needs one key, plan on either specifying keying at the order or rekeying to your system after the fact, which the 130S supports since it accepts conventional and IC core cylinders.
10) What stops someone from just unscrewing or wrenching off a Marks 130S deadbolt from the hallway?
Two things on the 130S. The cylinder collar is tapered, so there is no square shoulder for a wrench or pliers to grab and twist the cylinder out. Behind that, a steel shutter system covers the mounting screws whenever the bolt is thrown, so the lock cannot be unscrewed off the door while it is locked. The whole assembly is unitized rather than loose components, and the body is stainless steel.
11) Is the Marks 130S a self-locking latch or a true deadbolt I have to throw by hand?
A true deadbolt. The 130S is a deadlocking single cylinder deadbolt, meaning the 1 inch bolt stays where you put it and does not spring back under pressure, but it also does not latch on its own when the door closes. Someone has to throw it with the key or the inside turn. If you want a door that secures every time it shuts, you need a latching lockset alongside it; this is the auxiliary security on the opening, not the day to day latch.
12) The opening needs a key on both sides rather than a thumbturn. What replaces a Marks USA 130S there?
The Design Hardware D1 Series is a Grade 1 double cylinder deadbolt, extra heavy duty, for 1-3/4 inch doors. The Dexter DB1000 double cylinder is Grade 1 across 1-3/8 inch to 1-7/8 inch doors. Both key from both faces, where the Marks USA 130S is a single cylinder deadbolt with a cylinder outside and a thumbturn inside. Egress codes restrict double cylinder hardware in many occupancies, so confirm the requirement for the door before ordering.
13) Is there a lighter duty alternative to the Marks USA 130S for an interior office door that does not need Grade 1?
The Falcon D211 is a Grade 2 classroom function deadbolt with single cylinder operation, rated medium duty. The Arrow DBX61 and the Cal-Royal CB160 are also Grade 2 single cylinder deadbolts, cylinder x thumbturn, with the CB160 adding a tamper-resistant cylinder guard. All three run the same outside-key, inside-thumbturn arrangement as the Marks USA 130S at a lower ANSI grade.
14) Does the Arrow 460 strike work in place of the strike that comes with a Marks USA 130S?
The Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions with a straight lip, sized for 1-3/4 inch doors - it is the frame-side plate for a mortise lock, not a bored deadbolt. The Marks USA 130S is a bored deadbolt supplied with the #1335 strike measuring 2-3/4 inch by 1-1/8 inch and a 1 inch by 2-1/4 inch latch front. The two preps are not the same cutout.
15) The exit side of the door needs to lock without a key at all. What replaces a keyed Marks USA 130S?
The Arrow E60 is a Grade 2 exit deadlock, non-keyed, in a blank plate x thumbturn arrangement on 1-3/8 inch to 1-3/4 inch doors - thumbturn on one side and a blank plate on the other, with no cylinder to key. The Marks USA 130S is a keyed deadbolt with a Marks C 6-pin cylinder outside and a thumbturn inside.
16) Can a residential-style adjustable backset deadbolt be used in place of a Marks USA 130S on a school door?
The Brinks Raleigh and Mendocino series are single cylinder deadbolts, cylinder x thumbturn, with a 4-way adjustable backset that covers either bore position. The Cal-Royal ED500 and LSD are Grade 3 single cylinder deadbolts on 1-3/8 inch to 1-3/4 inch doors, the LSD with an ADA ergonomic thumbturn. The Marks USA 130S is a commercial Grade 1 deadbolt, so on a classroom door held to a Grade 1 spec these do not meet the same standard.
17) What finishes does the Marks 130S deadbolt come in, and will it match the rest of my door hardware?
Three finishes on the 130S: Bright Brass (US3), Stainless Steel (32D), and Dark Bronze (10B). 32D is the one that matches the satin stainless lever sets and exit devices on most institutional openings; 10B suits dark bronze storefront and entrance hardware, and US3 polished brass matches older brass trim.
18) What electronic deadbolt covers the same door as a Marks USA 130S when credentials replace keys?
The Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. The Codelocks CL2210 is an electronic mortise deadbolt, and the CL2200 is an electronic surface deadbolt in brushed steel, rated medium duty. The Marks USA 130S is a mechanical deadbolt keyed to a Marks C 6-pin cylinder, so moving to any of these changes how the door is credentialed and how the prep is cut.
19) Is the BEST 8T tubular deadbolt component an alternative to a Marks USA 130S?
The BEST 8T is a T Series tubular deadbolt tube component - the bolt assembly on its own, not a complete deadbolt with trim and cylinder. The Marks USA 130S is a complete single cylinder deadbolt supplied with a 6-pin Marks C cylinder, 2 keys, and the #1335 strike. Ordering the 8T alone does not produce a working lock on the door.
How fast can I get the Marks USA 130S/3-4C delivered?
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Can I return it if it doesn’t work for me?
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Does the Marks USA 130S/3-4C come with a warranty?
Absolutely. The Marks USA 130S/3-4C is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Marks USA 130S/3-4C?
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