Sure-Loc Zurich Square Knob Lo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$34.84
$25.48
Sure-Loc Zurich Square Knob Lockset with Adjustable Backset

Sure-Loc Zurich Square Knob Lockset with Adjustable Backset

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Model: ZH100-SQ 15
From the Sure-Loc Modern Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$34.84
$25.48
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Sure-Loc Zurich Square Knob Lockset with Adjustable Backset

The Sure-Loc Zurich Square Knob Lockset brings a clean, contemporary square rosette design to residential entry, passage, privacy, and dummy door applications. Built with a tubular lock mechanism and an adjustable 2-3/8" or 2-3/4" (60-70mm) backset, this knobset installs easily across standard residential door preparations. Keyed units are keyed alike in sets of 4 and use a single cylinder KW1 keyway (SC1 available), while privacy models feature push-pin locking for bedrooms and bathrooms. Available in Satin Nickel (15) and Polished Chrome (26) finishes to complement any interior decor.

Key Features

  • Adjustable Backset: Adjustable 2-3/8" or 2-3/4" (60-70mm) backset accommodates a variety of standard door prep configurations for versatile installation.
  • Tubular Lock Construction: Tubular lock type delivers dependable, straightforward operation suited to residential door hardware applications.
  • Keyed Alike in Sets of 4: Keyed cylinders are keyed alike in sets of 4, simplifying key management across multiple doors in the same home.
  • Push-Pin Privacy Locking: Privacy function models use push-pin locking for quick, reliable operation on bedroom and bathroom doors.
  • Multiple Lock Functions Available: Offered in Dummy, Entry, Passage, and Privacy functions to suit a range of interior and exterior door applications.
  • Single Cylinder Keyed Entry: Single cylinder keyed function provides secure entry control from the exterior side of the door.
  • KW1 Keyway Profile: Standard KW1 keyway profile is used, with SC1 also available, for flexible keying compatibility.
  • Zurich Square Knob Design: Square rosette Zurich knob design offers a clean, modern look for contemporary residential interiors.

Technical Specifications

  • Collection: Door Hardware
  • Department: Door Hardware
  • Subcategory: Knobs
  • Commercial/Residential: Residential
  • Electronic: No
  • Product Group: Mechanical Locks
  • Product Category: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Knobsets
  • MAP Policy: None
  • Lock Type: Tubular
  • Keyed: Yes
  • Keyed Function: Single Cylinder
  • Lock Function: Dummy, Entry, Passage, Privacy
  • Product Function: Knobsets
  • Product Model: ZH100-SQ / ZH101-SQ / ZH102-SQ / ZH107-SQ
  • Keyway Profile: KW1 (SC1 available)

Typical Applications

  • Single-Family Residential Homes
  • Apartments and Multi-Family Residences
  • Interior Bedroom and Bathroom Doors
  • Passage and Closet Doors
  • Rental and Multi-Tenant Properties
  • Condominiums and Townhomes
  • Vacation and Second Homes

Why Sure-Loc Zurich?

Sure-Loc Zurich knobsets deliver dependable tubular lock performance backed by a versatile adjustable backset and multiple lock function options for real-world residential installations. Thoughtful details like keyed-alike cylinders and push-pin privacy locking make the Zurich Square knob a practical, attractive choice for homeowners and installers alike.

Manufacturer Resources

Product Specs

Series:
Zurich
Department:
Door Hardware
Subcategory:
Knobs
Commercial/Residential:
Residential
Electronic:
No
Product Group:
Mechanical Locks
Product Category:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Handle Type:
Knob
MAP Policy:
None
Lock Type:
Tubular
Keyed:
Yes
Keyed Function:
Single Cylinder
Lock Function:
Dummy, Entry, Passage, Privacy
Product Function:
Knobsets
Product Model:
ZH100-SQ / ZH101-SQ / ZH102-SQ / ZH107-SQ
Keyway Profile:
KW1 (SC1 available)
Product Shape:
Square
Collection:
Sure-Loc Modern

Sure-Loc ZH100-SQ 15 – Frequently Asked Questions

1) Will the Sure-Loc Zurich Square knob fit a door bored at 2-3/4 inch backset, or only 2-3/8?
Both. The Zurich Square knobset uses an adjustable latch that sets to either 2-3/8 inch or 2-3/4 inch (60-70mm), which are the two standard bored-door backsets, so one part number covers either prep without ordering a different latch.
2) Can I key several Sure-Loc Zurich entry knobs to the same key across a rental unit?
Keyed Zurich units come keyed alike in sets of 4, so up to four openings in the same unit run off one key straight out of the box. The keyed function is single cylinder, keyed from the outside only, on a KW1 keyway with SC1 also offered. If you need more than four doors on one key, a locksmith would rekey the extras to the same KW1 bitting.
3) Is the Zurich keyway Kwikset or Schlage compatible?
Standard Zurich cylinders are KW1, the Kwikset-profile keyway, with SC1 (Schlage profile) also available. If the rest of your building is already on KW1 keys, the standard version drops into that system; on an SC1 property, specify the SC1 option so you keep one key.
4) The Zurich Square knob is residential grade - what should I use on a commercial opening instead?
The Sure-Loc Zurich Square knobset is a residential tubular knob lock. For commercial traffic, step up to a cylindrical lock with a stated ANSI grade: the BEST 8K Series is a Grade 1 heavy duty single cylinder entrance knob lock, the Sargent 8XG04 is a Grade 1 heavy duty storeroom/closet knob lock with a 2-3/4 inch backset, and the Corbin Russwin CK4851 is an entrance/office cylindrical lock with a Global knob and conventional cylinder for doors 1-3/8 inch to 2 inch thick. For a lighter-duty commercial passage door, the Falcon W101 is a Grade 2 medium duty knob lock with a 2-3/4 inch backset and a fire rating.
5) What is the closest alternative to the Sure-Loc Zurich Square knobset for a keyed residential entry door with a Kwikset keyway?
The Sure-Loc Zurich Square knobset uses a KW1 keyway with SC1 also available, in a single cylinder keyed entry configuration. If you want another knob lock on the Kwikset keyway, the Cal-Royal BER00 is an entrance/office Grade 3 knob lock built with a Kwikset keyway for doors 1-3/8 inch to 1-3/4 inch thick. The Kwikset 400P-CP is also a keyed entry Polo knob, Grade 3, for 1-3/8 inch to 1-3/4 inch doors, and it ships with a round corner adjustable latch and round corner strike.
6) Is a Sargent 6G04 or 8XG04 storeroom knob a substitute for the Sure-Loc Zurich Square entry knob?
No. The Sure-Loc Zurich Square keyed model is a single cylinder entry function, which is unlocked from the inside knob without a key. The Sargent 6G04 is a Grade 2 storeroom/closet single cylinder knob lock and the 8XG04 is the Grade 1 heavy duty version with a 2-3/4 inch backset; storeroom function keeps the outside knob locked at all times and requires a key on every entry. If you want a keyed knob that behaves like the Zurich entry, look at entrance/office function products such as the Dexter C2000 entry/office Grade 2 keyed ball knob or the Pamex FTF Baron Grade 3 entrance/office knob.
7) What looks like a knobset but will not replace a Sure-Loc Zurich Square lockset?
The Sure-Loc Zurich Square is a complete tubular bored lockset with a latch. Several knob products are trim only and will not work as a standalone lockset: the Sargent 28C-KNOB is exit device trim with knob and rose for 1-3/4 inch doors, the Sargent 78-2875 is an outside knob only in B design, and the Imperial USA ED-BKL580 is knob trim in storeroom function for the ED-500 exit device series. The Emtek Porcelain knobs ship as two knobs per set on a threaded rod, which is dummy-style hardware rather than a latching lockset.
8) Which Sure-Loc Zurich model number is the privacy knob for a bathroom door?
The Zurich Square family runs as ZH100-SQ / ZH101-SQ / ZH102-SQ / ZH107-SQ across dummy, entry, passage and privacy. For a bath or bedroom door you want the privacy version, which locks with a push-pin on the inside knob rather than a key. Order by the Privacy function option and the finish you need.
9) What finishes does the Sure-Loc Zurich Square knob come in, and are they the same across all four functions?
Four finishes: 15 Satin Nickel, 26 Polished Chrome, FBL Flat Black and SB Satin Brass. Each one is offered in all four functions (dummy, entry, passage, privacy), so you can finish a whole house consistently without switching to a different series on the closet or bath door.
10) Passage or privacy for a bedroom door - what's the difference on the Zurich?
Passage latches only and never locks, which suits hallways, closets and kids' rooms. Privacy adds push-pin locking on the inside knob for bedrooms and bathrooms, with no key on the outside. Neither is keyed; if you want a key from the outside, that's the Entry function, which is single cylinder.
11) I need a square-rose knob to match modern square lever trim - does anything else in the catalog do that?
The Zurich Square is the square-rosette knob option, part of the Sure-Loc Modern collection, which is what makes it the match for contemporary square trim. Most comparable knobsets are round-rose or traditional: the Bravura Dallas uses rectangle trim, while the Bravura Albany and Lynchburg are round trim, and the Emtek Arts and Crafts and Omnia egg knobs are traditional shapes. If the look has to be square, stay with the Zurich Square.
12) I need a bedroom and bath privacy knob that isn't the Sure-Loc Zurich Square - what else works?
The Sure-Loc Zurich Square is offered in a privacy function with push-pin locking. Other privacy knob locks include the Cal-Royal BER20, a Grade 3 privacy knob with brass trim for 1-3/8 inch to 1-3/4 inch doors; the Dexter C2000 Grade 2 privacy cylindrical ball knob, non-clutching and non-keyed, for the same thickness range; the Pamex FTF Baron Grade 3 privacy knob; and the Deltana 6112 St. Thomas privacy knob for doors 1-3/8 inch to 2 inch. Baldwin also offers privacy knobs in the Estate line, including the 5077 Bethpage with R027 rose and the 5000 Baltimore with a 2-3/8 inch backset and full lip strike.
13) My doors are thicker than 1-3/4 inch - which knob lock should I order instead of the Sure-Loc Zurich Square?
For thicker doors, look at peers that publish a wider thickness range. The Falcon X101 Grade 1 heavy duty cylindrical passage knobset with interchangeable core covers 1-3/8 inch to 2-1/4 inch. The Corbin Russwin CK4310 Grade 1 passage/closet lock and the CK4851 entrance/office lock both cover 1-3/8 inch to 2 inch, as do the Deltana 3381 Egg Knob entry, 6171 Round Knob entry and 6112 St. Thomas privacy knobs. The Schlage A170 single dummy trim covers 1-3/8 inch to 1-7/8 inch.
14) Which knob dummy trims are comparable to the Sure-Loc Zurich Square dummy?
The Sure-Loc Zurich Square is available in a dummy function with the square rosette look. Other dummy knob options include the Schlage A170 single dummy trim, a Grade 2 heavy duty non-keyed cylindrical knob for 1-3/8 inch to 1-7/8 inch doors; the BEST 6K Series single dummy trim, Grade 2 medium duty; the Cal-Royal BA40 Barrington dummy knob for 1-3/8 inch to 1-3/4 inch doors; the Bravura Biloxi Grade 2 dummy knobset with round trim; and the Omnia 458/0 solid brass single dummy latchset with a 2-3/8 inch backset.
15) I want a simpler non-keyed passage knob instead of the Sure-Loc Zurich Square passage - what are the options?
For closet and hall doors, non-keyed passage knobs include the Arrow MK01 and RK01, both Grade 2 passage cylindrical knob locks for 1-3/8 inch to 1-3/4 inch doors, with the RK01 using a ball knob; the Dexter C2000 Grade 2 passage ball knob for the same thickness range; the Kwikset 200P Polo passage knob with 6AL latch and round corner strike; and the Pamex FTF Baron Grade 3 passage knob. The Sure-Loc Zurich Square passage carries the same square rosette styling as the rest of the Zurich functions if matching appearance across the house matters.
16) Is there a keyless alternative to the Sure-Loc Zurich Square keyed entry knob for a rental property?
The Sure-Loc Zurich Square keyed models use a KW1 cylinder keyed alike in sets of four. If you would rather manage a code than keys, the Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function that fits doors 1 3/16 inch to 2 inch thick. It is a different install decision entirely: no cylinder to rekey, but also no key override, so it suits turnover doors where handing out keys is the problem.
17) If I need a classroom function knob, can I order the Sure-Loc Zurich Square?
No. The Sure-Loc Zurich Square is offered in dummy, entry, passage and privacy functions only. For classroom function, the Dexter C2000 Series offers a Grade 2 classroom cylindrical ball knob lock, keyed and non-clutching, for doors 1-3/8 inch to 1-3/4 inch thick. Sargent's 28C-KNOB exit device trim is also listed in classroom function for 1-3/4 inch doors, but that is trim for an exit device rather than a bored lockset.
18) What is the dummy version of the Zurich Square knob used for?
The dummy is a non-turning knob with no latch, mounted for pulling a door that doesn't need to latch: a closet slab, an inactive leaf of a French pair, or a pantry with a magnetic catch. It shares the square rosette and all four finishes with the working functions, so it matches the passage and privacy knobs on the same run of doors.
19) Is the Sure-Loc Zurich knob electronic or does it take a smart lock module?
Purely mechanical. The Zurich is a tubular knobset with no electronic option, so keyed units operate on a physical KW1 key and privacy units on a push-pin. For keyless operation without wiring, the Lockey 3830 is a mechanical combination knob lock instead.
20) What if I want a traditional or decorative knob instead of the square Zurich rosette?
The Sure-Loc Zurich Square uses a square rosette for a contemporary look. For traditional styling, Baldwin Estate offers the 5011 Colonial passage knob with 5058 rose and the 5000 Baltimore 2 inch knob with a 2-3/8 inch backset and full lip strike. Omnia's 434/PA egg-shaped knob latchset is solid brass with a 3 inch projection, and the 442/00 single dummy uses a 2-5/8 inch rose. Emtek's Arts and Crafts hammered egg and Classic Brass Crystal Georgetown and Providence knobs are offered as dummy pairs.
21) Which knob locks compare to the Sure-Loc Zurich Square for an apartment turn in satin nickel or satin brass?
The Sure-Loc Zurich Square is offered in Satin Nickel (15), Polished Chrome (26), Flat Black and Satin Brass across all four functions. Comparable finish-specific knobsets include the Callan Roland, a Grade 2 entrance knobset in US15 Satin Nickel, and the Bravura Dallas with rectangle trim, a Grade 2 passage knobset in US4 Satin Brass. Callan also lists the Edgewood Grade 2 entrance knobset and the Canova and Santo Grade 3 entrance knobsets if you are standardizing a building on one entrance model.
How fast can I get the Sure-Loc ZH100-SQ 15 delivered?
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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 Sure-Loc ZH100-SQ 15 come with a warranty?
Absolutely. The Sure-Loc ZH100-SQ 15 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 Sure-Loc ZH100-SQ 15?
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