Baldwin 6318031LLS Left Hand L...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$538.00
$372.46

Baldwin 6318031LLS Left Hand Lever Strength Interior Passage 2-1/2" Backset Mortise Lock Body

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Model: 6318031LLS
From the Estate Series Collection
Selected Finish is

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

$538.00
$372.46
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Baldwin 6318031LLS Left Hand Lever Strength Interior Passage 2-1/2" Backset Mortise Lock Body

  • Passage Mortise Lock
  • Knob X Knob / Lever X Lever
  • Latch Bolt By Knob Either Side
  • 2-1/2" Backset
  • Limited Lifetime Mechanical Warranty and No Finish Warranty

Product Specs

Product Group:
Mechanical Locks
Product Type:
Mortise Locks
Subcategory:
Mortise Locks
Product Subgroup:
Mortise Locks
Commercial/Residential:
Residential
Collection:
Estate Series
Lock Function:
Passage
Latch Faceplate Dimension:
1-1/4" x 8"
Product Model:
6318
Product Function:
Passage/Hall/Closet
Door Thickness Range:
1-3/8" and Over
Door Strike:
ASA Strike
Product Category:
Mechanical Locks
Backset (Distance):
2-1/2"
Department:
Door Hardware

Baldwin 6318031LLS – Frequently Asked Questions

1) Does the Baldwin 6318 passage mortise lock come with levers, knobs, or trim?
It is the lock body only. The 6318 is built to work with knob x knob or lever x lever trim, with the latch bolt retracted by the knob or lever from either side, but the trim, roses or escutcheons, and spindles are ordered separately from the Baldwin Estate Series to match the rest of your doors.
2) Does handing matter when ordering the Baldwin 6318031LLS?
Yes. The 6318031LLS is built left hand, so the latch is not field reversible on this part number. Stand outside the door: if it is hinged on your left and swings away from you, that is left hand. Get it wrong and the latch bevel faces the wrong way and will not catch the strike. For a passage mortise that is field reversible, the Falcon MA101 is a reversible option.
3) What strike does the Baldwin 6318 mortise lock use, and will it drop into my existing frame cutout?
It uses an ASA strike, the standard commercial-style mortise strike with the large rectangular lip. If your frame is already cut for an ASA strike, the frame prep carries over. The lock face is 1-1/4 x 8 inches, so the mortise pocket in the door edge has to accept a faceplate of that size.
4) Is a passage mortise lock the right choice for a bedroom or bathroom door?
No. Passage function means the latch retracts from either side at all times with no locking and no cylinder, which suits halls, closets, and rooms that never need to be secured. For a bedroom or bath you want privacy function, with a thumbturn inside. The Hager 3840S is a privacy mortise lock, and the Cal-Royal NM8440 is a privacy mortise lockset with a deadbolt.
5) What is a commercial-grade alternative to the Baldwin 6318 passage mortise lock body for a high-traffic opening?
The Baldwin 6318 is a residential Estate Series passage mortise lock body with a 2-1/2 inch backset. For a commercial opening carrying heavy traffic, the Falcon MA101 is a Grade 1 heavy-duty mortise passage lock with field reversible operation and a fire rating, and the Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors. Both are non-keyed passage functions like the 6318, so the door operates by lever from either side with no locking.
6) Can I use the Baldwin 6318 mortise lock on a commercial corridor or classroom door?
It is a residential lock from Baldwin's Estate Series, so it is meant for interior house and high-end residential openings, not institutional traffic or code-driven commercial openings. For commercial passage, the Schlage PM010 and the Falcon MA101 are Grade 1 passage mortise locks; the TownSteel MRX-L-01 is a Grade 1 heavy duty passage mortise with anti-ligature lever trim for behavioral health work.
7) I need to replace a Baldwin Estate mortise lock body on a closet door but keep the existing levers. Is this the part?
If the old body is a Baldwin 6318 passage unit, left hand, with a 2-1/2 inch backset and a 1-1/4 x 8 inch faceplate, the 6318031LLS drops into the same pocket and your existing Estate Series knob or lever trim carries over. Check the backset on the old body first, since Baldwin mortise bodies also come in other backsets and a mismatch moves the trim holes.
8) If I want one non-keyed passage lock across a set of doors, should I use a mortise or a cylindrical lock?
A mortise body like the Baldwin 6318 needs a pocket cut into the door edge, which is the right call when the doors are already mortised or when you want Estate Series trim. If you are prepping fresh doors and just need passage function, a cylindrical lock installs through a simple bored hole. The Schlage PC10 is a Grade 1 non-keyed passage cylindrical lock with rose trim for that case.
9) Is a Schlage PC10 passage lock a substitute for the Baldwin 6318?
They serve the same passage function but need different door prep. The Baldwin 6318 is a mortise lock body requiring a mortise pocket in the door edge and takes an ASA strike. The Schlage PC10 is a Grade 1 passage cylindrical lock with rose trim for 1-3/4 inch doors, which bores through the door face instead. Swapping between them means changing the door preparation, so match whichever prep the existing door already has.
10) What should I use instead of the Baldwin 6318 if the opening needs a keyed or classroom function?
The 6318 has no cylinder and no locking, so it cannot be keyed. For a keyed mortise opening, the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option, the Accentra 8805FL is a Grade 1 storeroom mortise lock with the Arcadia lever, and for classroom duty the Corbin Russwin ML2003 and Cal-Royal NM8070 are both Grade 1 classroom mortise locksets for 1-3/4 inch doors.
11) Will an Emtek Brisbane or Memphis mortise set work in place of the Baldwin 6318 lock body?
No. The Emtek 3019 Brisbane and 3102 Memphis mortise entrance locksets are dummy function, meaning they are fixed trim with no working latch. The Baldwin 6318 is a working passage lock body whose latch bolt retracts by knob or lever from either side, so it actually latches the door closed. Use a dummy set only on an inactive leaf or a door that does not need to latch.
12) Is there a passage mortise lock for a behavioral health or detention-type opening instead of the Baldwin 6318?
The Baldwin 6318 is a residential Estate Series body and has no anti-ligature trim. For that use, the TownSteel MRX-L-01 is a Grade 1 heavy-duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with ligature-resistant arch trim. The Marks USA MAR5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant.
13) What does the 031 finish on the Baldwin 6318031LLS mean?
031 is non-lacquered brass, meaning raw brass with no clear coat, so it will darken and patina over time rather than holding a fixed color. On a mortise lock body the finish mostly matters for matching the exposed latch faceplate to the trim you pair it with.
14) What replaces the Baldwin 6318 if the door needs keypad or credential access?
The 6318 is a mechanical passage body with no electronics. For access control on a mortise prep, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes in classroom function for 1-5/8 to 1-7/8 inch doors, the Dormakaba E-Plex E5086 is a Grade 1 pushbutton and card mortise lock, and the TownSteel FME-2000 is a Grade 1 heavy-duty classroom mortise lockset with RFID for 1-3/4 inch doors.
15) Can a Sargent 4874 mortise deadbolt take the place of the Baldwin 6318?
No, they do different jobs. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset and no latch, so it locks the door but will not hold it closed in daily use. The Baldwin 6318 is a passage lock body with a latch bolt retracted by knob or lever from either side. Openings that need both are usually served by a combined lockset such as the Sargent 7925 dormitory function mortise lock with a single cylinder deadbolt.
How fast can I get the Baldwin 6318031LLS 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 Baldwin 6318031LLS come with a warranty?
Absolutely. The Baldwin 6318031LLS 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 Baldwin 6318031LLS?
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
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