Weslock 3700 Impressa Knob Pas...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$72.80
$63.11
Weslock 3700 Impressa Knob Passage Lock in Oil Rubbed Bronze with Adjustable Latch and Full Lip Strike – front view

Weslock 3700 Impressa Knob Passage Lock with Adjustable Latch and Full Lip Strike

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Model: 03700ININSL20
From the Elegance Collection
$72.80
$63.11
Selected Finish is
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$72.80
$63.11
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Weslock 3700 Impressa Knob Passage Lock Overview

The Weslock 3700 Impressa is a cylindrical passage knob from the Elegance collection — built for hallways, closets, and interior doors where free passage is needed without a locking mechanism. Both interior and exterior knobs turn freely at all times. Concealed installation screws and removable knobs keep the installation clean and scratch-free. Backed by a Limited Lifetime Mechanical and Limited Lifetime Finish warranty.

Passage Function

Passage hardware has no locking mechanism — both handles are always free. Ideal for hallways, closet doors, and interior rooms where a lock is not required. Can be paired with a separate deadbolt on an entry door.

Standard Features

  • Cylindrical door lock construction
  • Meets ANSI A156.2 Grade II lock standards
  • Removable knobs prevent scratching during installation
  • Zinc die-cast rosettes
  • Adjustable latch: 2-3/8” or 2-3/4” backset with removable faceplates
  • Fits door thickness 1-3/8” to 1-3/4” standard; optional up to 2-1/4”
  • Fits doors prepared with 2-1/8” cross bore and 1” edge hole
  • Round corner full lip strike included
  • Limited Lifetime Mechanical Warranty
  • Limited Lifetime Finish Warranty

Weslock Resources

Weslock Elegance General Specifications

Installation Instructions

Manufacturer Resources

Product Specs

Product Group:
Mechanical Locks
Series:
Elegance
Warranty:
Limited Lifetime Mechanical and Limited Lifetime Finish
Collection:
Elegance
Cross Bore:
2-1/8"
Keyed Function:
Non-Keyed
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Residential Door Knobs
Keyed:
No
Commercial/Residential:
Residential
Lock Function:
Passage
Product Attribute:
Cylindrical Locks
IMAP Policy:
Yes
Tags:
weslock 03700ininsl20
Backset (Distance):
2-3/8 or 2-3/4
Product Function:
Passage/Hall/Closet
Door Thickness Range:
1-3/8" to 1-3/4"
Door Strike:
Round Corner Full Lip Strike
Product Style:
Woodward
Product Category:
Mechanical Locks
Product Substrate:
Brass
Department:
Door Hardware

Weslock 03700ININSL20 – Frequently Asked Questions

1) Will the Weslock 3700 Impressa passage knob fit a 2-3/8 inch backset door, or do I need the 2-3/4?
Either one. The 3700 Impressa ships with an adjustable latch that sets to a 2-3/8 or 2-3/4 inch backset, with removable faceplates, so you don't have to know which prep you have before you order. Measure from the door edge to the center of the 2-1/8 inch cross bore: 2-3/8 is typical on residential doors, 2-3/4 on heavier or commercial-prepped ones.
2) What door prep does the Weslock 3700 knob need, and will it drop into an existing knob hole?
It goes into a standard cylindrical prep: a 2-1/8 inch cross bore through the face and a 1 inch edge hole for the latch. That's the same bore pattern almost every residential knob and lever uses, so if you are pulling out an existing knob, the 3700 Impressa drops straight into the hole. A round corner full lip strike is in the box, so the frame side is covered too if the old strike is worn.
3) I have thick solid doors, around 2 inches. Will this Weslock knob still work?
Yes, but you have to order it that way. The 3700 Impressa comes standard for 1-3/8 to 1-3/4 inch doors, and there is a thick door option covering 1-3/4 to 2-1/4 inches. Door thickness is a required selection when you order, so pick the 1-3/4 to 2-1/4 inch option for your doors rather than trying to make the standard one stretch.
4) Does the Weslock 3700 Impressa knob lock, or is it always free to turn?
It never locks. Passage function means both knobs turn freely at all times, with no keyway, no button, and no thumbturn. It's for hallways, closets, and interior doors where you only need the door to latch shut. If you want an interior door that locks from inside for a bedroom or bath, you need a privacy set instead. On an entry door, pair the passage knob with a separate deadbolt to get the security.
5) Is the Weslock 3700 Impressa knob rated for commercial use, or is it a residential lock?
Residential. It meets ANSI A156.2 Grade 2 lock standards and is built for houses, apartments, and interior doors in light-traffic settings. For a corridor, classroom, or office where the door gets hammered all day, step up to a commercial passage knob such as the Corbin Russwin CK4310 (Grade 1) or the Falcon X101 heavy duty Grade 1 passage knobset. If Grade 2 commercial is enough, the Arrow MK01 or the Corbin Russwin CK4410 are the equivalent-grade commercial options.
6) What is the closest equivalent to the Weslock 3700 Impressa passage knob from another brand?
The Weslock 3700 Impressa is a non-keyed cylindrical passage knob for hall and closet openings, fitting doors 1-3/8 inch to 1-3/4 inch. The Corbin Russwin CK4410 is a Grade 2 passage/closet cylindrical lock with a Global knob, non-keyed, covering the same 1-3/8 inch to 1-3/4 inch door thickness. The Dexter C2000 passage cylindrical ball knob is also Grade 2, non-keyed, passage function, and covers 1-3/8 inch to 1-3/4 inch doors. The Arrow MK01 is a Grade 2 non-keyed passage cylindrical knob over the same door thickness range. All three do the same job as the 3700 in a non-locking interior opening; the difference is knob styling and series.
7) I need a passage knob for a commercial corridor with heavy traffic - is the Weslock 3700 the right choice or should I step up?
The Weslock 3700 Impressa is designated residential and meets ANSI A156.2 Grade II. For a heavy-traffic commercial corridor, the Falcon X101 is a heavy duty Grade 1 cylindrical passage knobset that is fire rated and fits doors 1-3/8 inch to 2-1/4 inch. The Corbin Russwin CK4310 is a Grade 1 passage/closet cylindrical lock with a Global knob, non-keyed, for doors 1-3/8 inch to 2 inch. Both carry a Grade 1 rating where the 3700 is Grade 2, and both cover thicker doors than the 3700 standard range.
8) Is a fire rated passage knob available instead of the Weslock 3700 Impressa?
The Weslock 3700 Impressa is a residential cylindrical passage knob. If the opening requires a fire rated passage knob, the Falcon W101 is a Grade 2 medium duty cylindrical knob lock with passage/closet latch function, fire rated, with a 2-3/4 inch backset. The Falcon X101 is the heavy duty Grade 1 equivalent, also fire rated, in passage function. Note the W101 is fixed at a 2-3/4 inch backset where the 3700 adjusts between 2-3/8 inch and 2-3/4 inch, so confirm the bore location on the door before ordering.
9) The bedroom door needs to lock - what takes the place of the Weslock 3700 Impressa there?
The Weslock 3700 Impressa is passage function with no locking mechanism; both knobs turn freely at all times. For a bedroom or bathroom you need privacy function. The Dexter C2000 privacy cylindrical ball knob is Grade 2, non-keyed, privacy/bed/bath, fitting doors 1-3/8 inch to 1-3/4 inch. The Cal-Royal BER20 is a Grade 3 privacy knob lock with brass trim over the same 1-3/8 inch to 1-3/4 inch range, and the Pamex FTF Baron is a Grade 3 privacy knob lockset covering that range as well.
10) The door needs a key - what is the keyed version to use instead of the Weslock 3700 Impressa knob?
The Weslock 3700 Impressa is non-keyed, so it will not take a cylinder. For a keyed opening, the Dexter C2000 entry/office cylindrical ball knob is Grade 2 and keyed, for doors 1-3/8 inch to 1-3/4 inch. The Cal-Royal BER00 is a Grade 3 entrance/office knob lock with a Kwikset keyway over the same door range. The Kwikset 400P-CP is a Grade 3 keyed entry Polo knob with a round corner adjustable latch and round corner strike, for doors 1-3/8 inch to 1-3/4 inch. The 3700 can also be left in place and paired with a separate deadbolt if the door only needs to be secured, not latched by key.
11) Will a dummy knob work in place of the Weslock 3700 Impressa passage knob?
No. The Weslock 3700 Impressa is a cylindrical passage lock with an adjustable latch and a round corner full lip strike, so it latches the door closed. A dummy knob has no latch and does not hold a door shut. The Schlage A170 is a Grade 2 cylindrical non-keyed single dummy trim, the BEST 6K single dummy trim is Grade 2 medium duty, and the Cal-Royal BA40 is a dummy cylindrical knob for doors 1-3/8 inch to 1-3/4 inch. Those are surface-mounted pulls for inactive leaves and closet false doors, not a substitute for the 3700 on a door that must latch.
12) My door is 2 inches thick - can I still use the Weslock 3700 Impressa knob?
The Weslock 3700 Impressa fits 1-3/8 inch to 1-3/4 inch doors as standard, with an option covering 1-3/4 inch to 2-1/4 inch that must be selected when ordering. If you would rather use a knob whose published range already covers a 2 inch door, the Corbin Russwin CK4310 Grade 1 passage/closet knob spans 1-3/8 inch to 2 inch, and the Falcon X101 Grade 1 passage knobset spans 1-3/8 inch to 2-1/4 inch. The Corbin Russwin CK4410 Grade 2 passage knob stops at 1-3/4 inch, so it is not the one for a 2 inch door.
13) Which passage knob matches the Weslock 3700 Impressa adjustable backset if I do not know how the doors are bored?
The Weslock 3700 Impressa uses an adjustable latch set to either a 2-3/8 inch or 2-3/4 inch backset with removable faceplates, which is what lets one part cover doors bored either way. Among the alternatives, the Kwikset 200P-CP Polo passage knob ships with a round corner adjustable latch and round corner strike, so it also covers both borings. The Falcon W101 Grade 2 passage knob is specified at a 2-3/4 inch backset only, and the Baldwin Estate 5000 Baltimore passage knob is preconfigured at 2-3/8 inch, so each of those needs the door boring confirmed first.
14) What is the difference between a passage knob and a dummy knob for a closet door?
A passage knob like the Weslock 3700 Impressa has a working latch, so the door stays shut until you turn the knob. A dummy knob is a pull only, mounted to the door face with no latch and no bore for one, used on inactive doors, double closet doors, and pantry doors held by a ball or roller catch. If your closet door has a latch hole in the edge, you want the passage set. If it doesn't, look at a dummy such as the Emtek Arts and Crafts Hammered Egg dummy pair or the Schlage A170 single dummy trim.
15) I need to match the Weslock 3700 Impressa knobs across a whole house. What finishes can I get?
Two finishes: Satin Nickel and Oil Rubbed Bronze. Both carry the Impressa knob design, so a run of hallway and closet doors matches exactly. The knobs are brass substrate with zinc die-cast rosettes. If you're standardizing a building and need the same look in a locking function on bedroom and bath doors, you'll need to specify a privacy set separately, since the 3700 is passage only.
16) Does the Weslock 3700 passage knob need to be handed for a left or right hand door?
No handing to specify. It's a non-handed passage set, both knobs turn freely in either direction, and the adjustable latch faceplate flips for either swing. Order it and install it on whichever hand of door you have.
17) What is the closest alternative to the Weslock 3700 Impressa passage knob if I want something plainer or heavier?
For the same residential passage job in a plainer round knob, the Kwikset 200P Polo passage knob comes with an adjustable round corner latch and round corner strike, much the same install. The Pamex FTF Baron Grade 3 passage knobset and the Bravura Albany Grade 2 passage knobset are other decorative options. If you want a step up in duty on a heavily used interior door, the Dexter C2000 Grade 2 passage ball knob or the Falcon W101 Grade 2 passage knob are medium duty commercial sets that still fit 1-3/8 to 1-3/4 inch doors.
18) I want a decorative passage knob rather than the Weslock 3700 Impressa - what else is there?
The Weslock 3700 Impressa is a brass-substrate knob from the Elegance collection in the Woodward style. For a different look in the same passage function, the Baldwin Estate 5011 Colonial passage knob uses a 5058 rose, and the Baldwin Estate 5000 Baltimore knob passage lock comes preconfigured with a 2-3/8 inch backset and full lip strike. The Omnia 434/PA is a traditional egg-shaped knob latchset in passage function with solid brass construction and a 3 inch projection. The Bravura Albany and Bravura Lynchburg are Grade 2 passage knobsets with round trim, and the Bravura Dallas is a Grade 2 passage knobset with rectangle trim in US4 satin brass.
19) For a classroom or storeroom opening, what should I order instead of the Weslock 3700 Impressa?
The Weslock 3700 Impressa is passage function only, with no locking mechanism, so it cannot serve a classroom or storeroom door. The Dexter C2000 classroom cylindrical ball knob is Grade 2 and keyed. For storeroom function, the Sargent 6G04 is a Grade 2 standard duty storeroom/closet knob lock with a single cylinder, and the Sargent 8XG04 is the Grade 1 heavy duty storeroom/closet single cylinder knob lock with a 2-3/4 inch backset.
20) Can I use a keyless combination knob where the Weslock 3700 Impressa passage knob would go?
They are not the same device. The Weslock 3700 Impressa is a non-keyed mechanical passage knob whose knobs turn freely at all times. The Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function for doors 1 3/16 inch to 2 inch, meaning entry is controlled by a code rather than free at all times. If the opening only needs a latching hall or closet knob with no access control, the 3830 adds a code the 3700 does not have.
21) I am standardizing interior knobs across a building - which brands offer matching passage, privacy and keyed knobs in one series?
The Weslock 3700 Impressa covers passage only within the Elegance collection. If you want one series across every interior opening, the Dexter C2000 series offers Grade 2 passage, privacy, entry/office and classroom cylindrical ball knobs, all for doors 1-3/8 inch to 1-3/4 inch. The Pamex FTF Baron series offers Grade 3 passage, privacy and entrance/office knob locksets over the same door range. The Cal-Royal Barrington family covers entrance/office, privacy and dummy in Grade 3 for 1-3/8 inch to 1-3/4 inch doors.
22) What is the difference between the Weslock 3700 Impressa and the Arrow RK01 ball knob passage lock?
Both are non-keyed cylindrical passage knobs for hall and closet doors, and both fit 1-3/8 inch to 1-3/4 inch doors. The Arrow RK01 is a Grade 2 lock from the RK Series with a ball knob; the Arrow MK01 is the MK Series counterpart, also Grade 2 passage. The Weslock 3700 uses the Impressa knob from the Elegance collection with concealed installation screws and removable knobs, adjusts between a 2-3/8 inch and 2-3/4 inch backset, and includes a round corner full lip strike.
23) Do any alternatives to the Weslock 3700 Impressa take an interchangeable core?
The Weslock 3700 Impressa is non-keyed, so there is no cylinder to core. The Falcon X101 is a heavy duty Grade 1 cylindrical passage knobset with an interchangeable core, fire rated, for doors 1-3/8 inch to 2-1/4 inch. That is the option when a facility keys everything to one small format core system and still wants passage trim on the interior doors.
24) Do I have to buy a strike plate separately with the Weslock 3700 Impressa?
No, a round corner full lip strike ships with the set. Round corner suits the pre-routed strike mortise in most pre-hung residential jambs. The full lip is the piece that matters on a rough or slightly out-of-plumb frame, since it gives the latch a ramp to ride onto instead of catching on the jamb edge. If your jamb has a square corner mortise, you'd need to square the corners of the pocket or swap to a square corner strike.
25) Are the mounting screws on the Weslock Impressa knob visible from the face of the door?
No. The 3700 Impressa uses concealed installation screws, so nothing shows on the rose once it's together. The knobs also come off for installation, which keeps you from dragging a finished knob against the door face while you're setting the rose. Worth knowing on a painted or stained door where a scratch means refinishing.
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Does the Weslock 03700ININSL20 come with a warranty?
Absolutely. The Weslock 03700ININSL20 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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