TownSteel CRX-K Ligature-Resis...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$713.00
$573.42
TownSteel TownSteel CRX-K-75 Passage Function - Satin Stainless Steel Heavy Duty Ligature Resistant Knob Cylindrical Lockset TWS-CRX-K-75

TownSteel CRX-K Ligature-Resistant Knob Passage Function Lockset, ANSI Grade 1 Heavy Duty Cylindrical Lock

(No reviews yet) Write a Review

Model: CRX-K-75-630
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$713.00
$573.42
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

TownSteel CRX-K Ligature-Resistant Knob Passage Lockset

The TownSteel CRX-K is an ANSI Grade 1 cylindrical lockset featuring a ligature-resistant stainless steel knob, purpose-built for behavioral, mental, and psychiatric healthcare facilities housing patients at risk. This Passage Function, non-keyed lockset mounts on wood or metal doors measuring 1-3/4" to 2" thick, and pairs a 1-1/8" x 2-1/4" square corner face plate with a 1-1/4" x 4-7/8" ASA strike for straightforward, code-compliant installation. Tamper-resistant mounting screws add an extra layer of security against unauthorized disassembly in sensitive care environments.

Key Features

  • Door Thickness Compatibility: Engineered for doors measuring 1-3/4" to 2" thick, covering standard commercial and healthcare door dimensions.
  • Face Plate & Strike Dimensions: Includes a 1-1/8" x 2-1/4" square corner face plate and a 1-1/4" x 4-7/8" ASA strike for accurate, code-compliant door prep.
  • Ligature-Resistant Stainless Steel Knob: Purpose-designed knob geometry reduces ligature points, supporting patient safety protocols in behavioral and psychiatric care settings.
  • Tamper-Resistant Mounting Screws: Helps prevent unauthorized disassembly or tampering, an important safeguard in at-risk patient environments.
  • Heavy-Duty ANSI Grade 1 Construction: Commercial-grade build quality delivers dependable, long-term performance in high-use healthcare corridors.
  • Versatile Door Mounting: Suitable for installation on both wood and metal doors, simplifying specification across mixed-door facilities.
  • Passage Function Operation: Non-keyed, always-unlocked operation on both sides allows free, unrestricted movement through corridors and common areas.

Certifications & Compliance

  • ANSI Grade 1 Rated
  • Heavy Duty Commercial Classification

Technical Specifications

  • Series: CRX-K Series
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Knobsets
  • Subcategory: Cylindrical Locks
  • Commercial/Residential: Commercial
  • Keyed Function: Non-Keyed
  • Duty Level: Heavy Duty
  • Product Function: Passage
  • Door Thickness Range: 1-3/4" to 2"
  • Face Plate: 1-1/8" x 2-1/4", square corner
  • Door Strike: 1-1/4" x 4-7/8", ASA Strike
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Behavioral Health Facilities
  • Psychiatric Care Units
  • Mental Health Treatment Centers
  • Facilities Housing At-Risk Patients
  • Healthcare Institutions
  • Patient Room Corridors
  • Commercial Healthcare Common Areas

Why TownSteel CRX-K?

TownSteel CRX-K locksets combine ANSI Grade 1, heavy-duty construction with a purpose-engineered ligature-resistant stainless steel knob and tamper-resistant mounting screws, addressing the specific safety demands of behavioral, mental, and psychiatric healthcare environments. Built to mount on both wood and metal doors, the CRX-K delivers dependable passage-function performance where patient safety and facility durability cannot be compromised.

Product Specs

Series:
CRX-K Series
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Cylindrical Locks
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Handle Type:
Knob
Keyed Function:
Non-Keyed
Duty Level:
Heavy Duty
Grade:
Grade 1
Product Function:
Passage
Door Thickness Range:
1-3/4" to 2"
Face Plate:
1-1/8" x 2-1/4", square corner
Door Strike:
1-1/4" x 4-7/8", ASA Strike
Product Category:
Mechanical Locks
Department:
Door Hardware

TownSteel CRX-K-75-630 – Frequently Asked Questions

1) Will the TownSteel CRX-K-75 passage lockset fit a 1-3/8 inch door?
No. The CRX-K-75 is built for 1-3/4 inch to 2 inch doors only, which covers standard commercial thickness and heavier psychiatric-grade doors. On a 1-3/8 inch door you need a different lock. Among Grade 1 passage cylindrical knob locks, the Falcon X101 covers 1-3/8 to 2-1/4 inches and the Corbin Russwin CK4310 covers 1-3/8 to 2 inches, though neither is a ligature-resistant knob.
2) Does the CRX-K-75 lock the door, or does it just latch?
It only latches. The CRX-K-75 is passage function and non-keyed, so both knobs are always free and there is no cylinder and no privacy button. Use it on corridor, closet and day room doors in a behavioral health unit where staff need free movement. If the opening has to secure, you need a keyed or privacy function in the CRX-K line instead.
3) Will this TownSteel ligature-resistant knob lock work in my existing ASA strike prep?
Yes, if the frame is prepped ASA. The CRX-K-75 ships with a 1-1/4 inch by 4-7/8 inch ASA strike, which is the common commercial hollow metal frame prep. The latch faceplate is 1-1/8 inch by 2-1/4 inch with square corners, so a door edge routed for a square-corner faceplate of that size takes it directly.
4) What makes the CRX-K knob ligature resistant, and where is it meant to be used?
The knob is a sloped stainless steel form with no projecting lever arm or gap that a cord, sheet or strap can be anchored to, and the mounting screws are tamper resistant. TownSteel builds it for behavioral, mental and psychiatric healthcare facilities housing at-risk patients. A standard lever or ball knob in those rooms gives an anchor point; this does not.
5) What is the closest Grade 1 passage knob lock to the TownSteel CRX-K-75 from another brand?
The Falcon X101 is the nearest straight equivalent: a heavy duty Grade 1 cylindrical passage knobset, fire rated, with a door thickness range of 1-3/8 inch to 2-1/4 inch. The Corbin Russwin CK4310 is also Grade 1 passage/closet with a Global knob and a 1-3/8 inch to 2 inch door range. The difference that matters is the knob itself - the CRX-K-75 uses a ligature-resistant stainless steel knob with tamper-resistant mounting screws for behavioral and psychiatric healthcare openings, which neither the X101 nor the CK4310 provides. If the ligature-resistant profile is the reason for the specification, those two are not substitutes.
6) My door is 1-3/8 inch thick - what passage knob should I use instead of the CRX-K-75?
The CRX-K-75 is built for 1-3/4 inch to 2 inch doors, so a thinner leaf needs a different lock. The Corbin Russwin CK4310 is Grade 1 passage/closet and covers 1-3/8 inch to 2 inch, and the Falcon X101 Grade 1 passage knobset covers 1-3/8 inch to 2-1/4 inch. At Grade 2, the Corbin Russwin CK4410 and the Dexter C2000 passage knob both list 1-3/8 inch to 1-3/4 inch.
7) I need a keyed lock on a patient room door, not a passage function - what else is there?
The CRX-K-75 is non-keyed passage, so it latches without locking. For keyed heavy duty Grade 1 knob locks, the Sargent 8XG04 is a storeroom/closet single cylinder knob lock with a 2-3/4 inch backset, the BEST 8K entrance function is Grade 1 heavy duty single cylinder, and the Corbin Russwin CK4851 is an entrance/office cylindrical lock with a conventional cylinder for 1-3/8 inch to 2 inch doors. None of those three carry the ligature-resistant knob the CRX-K-75 uses, so for at-risk patient housing confirm the keyed function is available within the ligature-resistant series before substituting.
8) Can a ligature-resistant knob lockset go on a wood door, or is it hollow metal only?
Both. The CRX-K mounts on wood or metal doors, so you can standardize the same lock across patient room wood doors and hollow metal corridor doors in the same facility. It uses tamper-resistant mounting screws so the trim cannot be pulled off with a common driver.
9) Is the TownSteel CRX-K-75 Grade 1, and how does it compare to a Grade 2 passage knob for a high-traffic facility?
It is ANSI Grade 1 heavy duty, the top cylindrical grade for cycle life and strength, which is what you want on behavioral health corridors that get hit all day. Grade 2 passage knobs like the Corbin Russwin CK4410 or the Dexter C2000 passage are built to a lower cycle and strength standard and carry no ligature-resistant knob form.
10) I need a heavy duty Grade 1 passage knob but not a ligature-resistant one. What else is there?
For a standard commercial passage opening, the Falcon X101 is a Grade 1 heavy duty cylindrical passage knobset that takes an interchangeable core and fits 1-3/8 to 2-1/4 inch doors, and the Corbin Russwin CK4310 is a Grade 1 non-keyed passage knob for 1-3/8 to 2 inch doors. Keep the CRX-K-75 for rooms where an anti-ligature knob is required.
11) If the room needs privacy rather than free passage, what takes the place of the CRX-K-75?
The CRX-K-75 is passage only, with no locking function. Privacy knob locks in the same cylindrical family include the Dexter C2000 privacy ball knob at Grade 2, the Cal-Royal BER20 privacy knob at Grade 3, and the Pamex FTF Baron privacy knob at Grade 3. Note that a standard privacy knob with an exposed turn button is generally not appropriate on at-risk patient rooms, which is the application the ligature-resistant CRX-K-75 is built for.
12) What finish does the TownSteel CRX-K-75 come in?
630 satin stainless steel, the standard institutional finish, and it is the only finish offered in both the 2-3/4 inch and 5 inch backsets. That matches typical stainless push plates, hinges and frames on a healthcare unit, so it drops into an existing 630 hardware set without looking odd.
13) Which Grade 1 knob locks besides the CRX-K-75 offer a 2-3/4 inch backset for standard commercial prep?
The CRX-K-75 lists 2-3/4 inch as its standard backset with a 5 inch option for wider stiles. Among Grade 1 heavy duty peers, the Sargent 8XG04 storeroom/closet knob lock is specified with a 2-3/4 inch backset. The Falcon X101 is a Grade 1 heavy duty passage knobset with interchangeable core, which is the closer match if the function needs to stay passage.
How fast can I get the TownSteel CRX-K-75-630 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TownSteel CRX-K-75-630 come with a warranty?
Absolutely. The TownSteel CRX-K-75-630 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 TownSteel CRX-K-75-630?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the TownSteel CRX-K-75-630 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!