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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
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 03700I1I1SL20 – Frequently Asked Questions
1) What is the Weslock 3700 Impressa knob designed for?
The Weslock 3700 Impressa is a passage lock designed for interior doors that don't require locking. It's ideal for hallways, closets, and rooms where privacy isn't needed but smooth operation is essential.
2) What door thickness does this lock accommodate?
The adjustable latch mechanism typically accommodates standard door thicknesses from 1-3/8" to 1-3/4". Always verify your specific door thickness before installation to ensure proper fit.
3) Is this lock handed or universal?
Passage locks are typically universal and work on both left-hand and right-hand doors. The adjustable latch can be configured during installation for your specific door swing direction.
4) What finishes are available for the Weslock 3700 series?
Weslock typically offers multiple finish options including polished brass, satin nickel, and oil-rubbed bronze. Check the specific product listing for available finishes as options may vary by model.
5) What grade rating does this lock meet?
Weslock residential locks typically meet ANSI Grade 3 standards for residential use. This provides adequate durability for typical home applications with moderate to light usage.
6) Does this lock meet building code requirements?
Passage locks generally meet standard building codes for interior non-locking applications. Always verify local code requirements and ADA compliance needs for your specific installation.
7) What hardware is included with this lock set?
The set includes both knobs, adjustable latch mechanism, full lip strike plate, and mounting hardware. The full lip strike provides enhanced door frame protection and professional appearance.
8) What tools are needed for installation?
Standard installation requires a drill, hole saw bits (2-1/8" for knob, 1" for latch), chisel, screwdriver, and measuring tape. Follow manufacturer template for precise hole placement.
9) How do I maintain the Weslock 3700 knob set?
Clean regularly with mild soap and water, avoiding abrasive cleaners. Lubricate moving parts annually with graphite or light machine oil. Check mounting screws periodically for tightness.
10) Are there matching locks available in this series?
The Weslock 3700 Impressa series typically includes privacy and entry lock options with matching design. This allows you to maintain consistent appearance throughout your project.
11) What backset does this lock use?
Most Weslock residential locks use a standard 2-3/8" backset, with some models offering adjustable or 2-3/4" options. Verify your door preparation matches the lock specifications before installation.
12) Can this lock handle heavy or frequently used doors?
This residential-grade lock is designed for standard home use. For heavy doors or high-traffic applications, consider commercial-grade options or verify door weight limits with manufacturer specifications.
How fast can I get the Weslock 03700I1I1SL20 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 Weslock 03700I1I1SL20 come with a warranty?
Absolutely. The Weslock 03700I1I1SL20 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 Weslock 03700I1I1SL20?
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 Weslock 03700I1I1SL20 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.