Schlage B660-IS-LOC Grade 1 Si...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$386.00
$279.56
Schlage B660-IS-LOC Grade 1 Single Cylinder Deadbolt , Inside Indicator "UNLOCKED/LOCKED"

Schlage B660-IS-LOC Grade 1 Single Cylinder Deadbolt , Inside Indicator "UNLOCKED/LOCKED"

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Model: B660P 626 IS-LOC
From the B500_Series Collection
$386.00
$279.56
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$386.00
$279.56
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OVERVIEW

Schlage B Series deadbolts have long been the industry standard for tubular deadbolts. Built Schlage strong, B Series deadbolts are among the most secure and durable in the industry. The commercial Grade 1 deadbolts are also among the most beautiful with a sleek, broadly angled trim ring in a shallow, 7/8" depth offered in 11 finishes. A wide variety of functions and choice of cylinders including geographically exclusive Primus XP options makes them suitable for nearly any deadlock application need.

FEATURES & BENEFITS

Strong and secure

  • Solid sintered steel bolt with hardened steel anti-saw pin is thicker than most grade 1 deadbolt offerings
  • Metal dustbox anchors deep to reinforce wood door frames with three 3" screws to protect against kick-in attacks
  • Free spinning, broadly angled cylinder collar resists wrenching and prying
  • Removeable security shield protects bolt from ice-pick attack through the door
  • Hardened steel ball-bearings protect mounting bolts from drill attack (Torx screw packs also available)
  • Fixed backset strengthens lock against tampering (adjustable option available)
  • UL 437 listed option resists drilling and physical attack on the cylinder (B800 only)
  • UL 10C 3-hour fire rated as auxiliary locks


Key System Security

  • Open and restricted keyway options
  • Primus XP program geographic exclusivity (B700 and B800)
  • Factory master keying available
  • Accepts all three cylinder formats: Conventional, FSIC and SFIC


Functional and aesthetic options

  • 6 functions include keyless, single cylinder and double cylinder options
  • 11 finish options
  • Suites with nearly all Schlage and Von Duprin products


CERTIFICATIONS

  • ANSI/BHMA A156.5 Grade 1 certified with Conventional cylinder (FSIC is Grade 2; SFIC is Grade 3)
  • UL 10C listed, 3-hour fire rated as auxiliary locks for A label single doors, 4' x 8'
  • UL 10B listed for neutral pressure doors
  • UL 437 listed (B800 Series only)
  • ADA compliant thumbturn design
  • BAA (Buy American Act) compliant product


FUNCTIONS

Keyless

  • B680 (E0191) Door bolt - thumbturn x no exterior trim


Keyed single cylinder

  • B660/B760/B860 (E0151) - thumbturn x cylinder
  • B661/B761/B861 (E0161) - blank rose x cylinder
  • B663/B763/B863 (E0171) Classroom deadbolt - thumbturn retracts only x cylinder
  • B664/B764/B864 (E0101) Cylinder lock - no inside trim x cylinder


Keyed double cylinder

  • B662/B762/B862 (E0141) - cylinder x cylinder


PRODUCT SPECIFICATIONS

Deadbolt: 1" housing diameter; 0.875" x 0.62" x 1" throw; sintered steel with hardened steel anti-saw pin insert (drive-in options available)
Faceplate: 1-1/8" x 2-1/4" with square corners
Strike: 1-1/8" x 2-3/4" with square corners (ANSI, round corner and thimble strike options available)
Backset: 2-3/4" fixed (adjustable and other fixed options available)
Door range: 1-5/8"-2" Conventional and FSIC; 1-3/4"-2" SFIC; 1-3/8"-2-1/2" door bolt only
Reinforcement: Metal dust box reinforcer with three 3" screws
Trim ring: 7/8" solid brass or bronze
Cylinder: 6-pin solid brass, keyed 6-pin, S123 keyway, keyed different (KD)
Keys: Two nickel silver cut keys per lock

Suiting

Designed to create an attractive and cohesive building-wide look when paired with other Schlage, Von Duprin or LCN devices.

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Product Information



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Product Specs

Subcategory:
Deadbolts
Series:
B600 Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keys Included:
2
Warranty:
10 Year
Standard Latch:
12-296: Deadbolts - Adjustable 2-3/8" or 2-3/4"- Square corner, 1-1/8" x 2-1/4", 1" Housing Diameter
Standard Strike:
10-094: Square corner, no box, 1-1/8" x 2-3/4"
Keyed:
Yes
ANSI/BHMA:
E0151
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Indicator Lock
Electronic:
No
Keyed Function:
Single Cylinder
Commercial/Residential:
Commercial
Cylinder and Keyways:
6-pin Conventional Cylinder (C Keyway)
Lock Function:
Deadbolt
Lock Type:
Deadbolts
Product Attribute:
Indicator Locks
Product Model:
B660
Collection:
B500_Series
Product Function:
Cylinder x Thumbturn
Product Category:
Mechanical Locks
Department:
Door Hardware

Schlage B660P 626 IS-LOC – Frequently Asked Questions

1) Will the Schlage B660 indicator deadbolt fit a 1-3/4 inch commercial door?
Yes, and the door range depends on which cylinder you order. With a conventional cylinder or FSIC the B660 covers 1-5/8 to 2 inch doors. Order it as SFIC less core and the range narrows to 1-3/4 to 2 inches, so a 1-5/8 inch door rules the SFIC version out. Backset is 2-3/4 inches fixed, which is the standard commercial bore location, and the fixed backset is part of how the lock resists tampering.
2) What does the UNLOCKED/LOCKED indicator on the Schlage B660-IS-LOC actually show, and which side is it on?
The indicator reads UNLOCKED or LOCKED and sits on the inside, at the thumbturn. Function is cylinder outside by thumbturn inside, so somebody standing in the room can see the bolt state without touching the turn, while the key still operates it from the corridor. That is the difference from a plain B660: same single cylinder deadbolt function, with a visual status window added on the interior trim.
3) Is the Schlage B660 deadbolt fire rated for a labeled door?
UL 10C listed and 3-hour fire rated as an auxiliary lock, for A label single doors up to 4 by 8 feet. It is also UL 10B listed for neutral pressure doors. Auxiliary is the operative word: the fire rating covers it as a deadbolt used alongside the door's primary latching hardware, not as the latching device on its own.
4) Is the Schlage B660 really Grade 1, or does that change with the cylinder I pick?
It changes with the cylinder, and this catches people out. ANSI/BHMA A156.5 Grade 1 applies with a conventional cylinder. Order it FSIC and it certifies Grade 2; order it SFIC and it certifies Grade 3. So if your spec says Grade 1 deadbolt, the P6 6-pin conventional C keyway version is the one that meets it, not the B or J less-core versions.
5) Will the Schlage B660 drop into the deadbolt prep and strike I already have?
The bolt housing is 1 inch diameter through a 2-3/4 inch backset bore, with a 1-1/8 by 2-1/4 inch square corner faceplate. The strike supplied is 10-094, square corner, no box, 1-1/8 by 2-3/4 inches. If your existing prep is a standard 1 inch cross bore at 2-3/4 backset with a square corner mortise, it drops in. Radius corner preps will not take the square faceplate as supplied, though Schlage offers round corner, ANSI and thimble strike options. Bolt throw is 1 inch, so it reaches a standard strike depth.
6) What do I have to specify when ordering a Schlage B660 indicator deadbolt?
Four decisions. Cylinder: P6 6-pin conventional in the C keyway, J for FSIC less core, or B for SFIC less core (the less-core options ship without a core, so you supply it from your own system). Keying: keyed different as standard, or keyed alike if you want a group of bolts on one key. Keyway: C standard or S123. Finish: eleven choices, from 605 bright brass through 626 satin chrome, 622 matte black, 613 oil rubbed bronze and 643E aged bronze, including 626AM satin chrome antimicrobial. Keyed versions come with two cut keys.
7) Can I put the Schlage B660 on my existing master key system?
Yes, and there are three routes. Take the P6 conventional cylinder if you want a 6-pin brass cylinder keyed to the C or S123 keyway, with factory master keying available. Take the J version if your building runs full size interchangeable core, or the B version for small format interchangeable core, both supplied less core so you pin and drop in your own. Restricted keyway options exist alongside the open keyways. The keyed alike option groups several bolts onto one key if you are doing a run of storage or mechanical rooms.
8) I have 1-3/8 inch doors. Will the Schlage B660 work?
No. The B660 starts at 1-5/8 inches with a conventional or FSIC cylinder, so a 1-3/8 inch door is under range. For that thickness with the same thumbturn plus indicator function, the Accentra D292 covers 1-3/8 to 1-3/4 inches and the Arrow E50 exit deadlock covers the same range with a Vacant/Occupied indicator on the outside, though the E50 is non-keyed. Both are Grade 2 rather than Grade 1.
9) What is the closest Grade 1 alternative to the Schlage B660-IS-LOC indicator deadbolt?
The B660-IS-LOC is a Grade 1 single cylinder deadbolt with a cylinder outside and an inside thumbturn carrying an UNLOCKED/LOCKED indicator. The nearest Grade 1 peer that also pairs a thumbturn with an indicator is the Cal-Royal IND90-G2, a Grade 1 indicator deadbolt with an ADA thumbturn and a thumbturn x indicator function. The difference a locksmith cares about is the keyed side: the Schlage takes a keyed cylinder outside, in a 6-pin conventional C keyway, SFIC less core, or FSIC less core, so it can be brought into an existing Schlage key system.
10) I need an occupancy indicator deadbolt but the opening does not need to be keyed - what should I use instead of the B660?
The B660-IS-LOC is a keyed single cylinder deadbolt, so a cylinder has to be keyed and issued for it. On a restroom or changing room where nobody carries a key, the Arrow E50 is a non-keyed Grade 2 exit deadlock with a VACANT/OCCUPIED indicator on the outside and a thumbturn x indicator function, fitting doors 1-3/8 inch to 1-3/4 inch thick. The Cal-Royal IND84 is a Grade 3 indicator deadbolt with the same thumbturn x indicator arrangement.
11) Is a privacy lever with a status indicator the same thing as a Schlage B660-IS-LOC?
No. The B660-IS-LOC is a deadbolt - a bolt-only lock with no knob or lever, keyed outside and thumbturn inside. The Accentra AUYPL02 in the YPL Series and the Corbin Russwin CLX3320 NVSL are Grade 1 privacy/bed/bath cylindrical lever locks with a visual status indicator, so they latch and operate the door on their own. Those two go in the door where the handle goes; the B660 goes above it as the auxiliary bolt. On an opening that already has a passage or storeroom lever, the deadbolt is the one that adds the indicator without changing the handle.
12) For a public restroom that needs both a latch and an occupancy indicator in one lock, is the B660 the right choice?
The B660-IS-LOC is a deadbolt only - it throws a bolt and does not latch the door, so a restroom using it still needs a separate latch or passage set. The Falcon H2171 is a Grade 2 public restroom interconnected lock with an occupancy indicator and a single cylinder deadbolt in the H2 Series, combining the latch and the keyed deadbolt in one interconnected assembly. Choose the B660 when the door already has its handle set and only the bolt is being added or upgraded to Grade 1.
13) My door is 2 inches thick - which indicator deadbolt covers it?
The B660-IS-LOC covers 1-5/8 inch to 2 inch doors with a conventional or FSIC cylinder and 1-3/4 inch to 2 inch with SFIC, on a 2-3/4 inch fixed backset. Among the indicator peers, the Corbin Russwin CLX3320 NVSL lever lock is rated 1-3/4 inch to 2 inch. The Accentra D292 and Arrow E50 stop at 1-3/4 inch and the Hager 3216 is built for 1-3/4 inch doors, so on a 2 inch leaf the Schlage is the deadbolt that reaches.
14) Should I use an indicator deadbolt or an indicator privacy lever for a single occupancy restroom?
Depends on whether you want the room keyed. The B660-IS-LOC is a keyed single cylinder deadbolt: key outside, indicating thumbturn inside, and it needs separate latching hardware because it is an auxiliary bolt. If you want one device that both latches and shows status, look at a privacy lever with a status indicator such as the Corbin Russwin CLX3320 NVSL, Grade 1 privacy for 1-3/4 to 2 inch doors, or the Accentra AUYPL02 in the YPL Series, also Grade 1 privacy. For a restroom that also needs a keyed storeroom function, the Falcon H2171 is a Grade 2 interconnected lock with occupancy indicator.
15) Does the Schlage B660 deadbolt come with a strike and reinforcement for a wood frame?
It ships with the 10-094 square corner strike, no box, 1-1/8 by 2-3/4 inches, plus a metal dust box reinforcer fastened with three 3 inch screws that bite into the framing behind the jamb. That is what resists a kick-in on a wood frame, and it is the part people leave in the box. Two cut nickel silver keys come with the keyed versions. The trim ring is 7/8 inch solid brass or bronze.
16) Will the Schlage B660 match the exit devices and locks already on my building?
The B600 Series is built to suite with nearly all Schlage and Von Duprin products, and with LCN devices, so a building already running Schlage locksets or Von Duprin exits will read as one family. Eleven finishes cover the usual commercial specs, 626 satin chrome and 613 oil rubbed bronze among them, and the trim is a shallow 7/8 inch angled ring rather than a tall collar. For a healthcare or food service corridor there is 626AM, satin chrome with an antimicrobial finish.
17) Is the Schlage B660 thumbturn ADA compliant, and does it meet Buy American requirements?
The thumbturn design is ADA compliant, so it operates without tight grasping or twisting of the wrist, and the B Series is Buy American Act compliant. Both matter on government, education and healthcare work where the submittal has to carry them. Note the ADA claim covers the thumbturn side; the key cylinder outside is the same as any keyed deadbolt.
18) How does the B660 differ from the other Schlage B600 keyed deadbolt functions?
B660 is E0151, thumbturn inside by cylinder outside. If you want no inside operation at all, that is B664 (E0101), cylinder outside with no inside trim. B661 (E0161) swaps the thumbturn for a blank rose. For a classroom deadbolt where the inside turn can only retract, never project, that is B663 (E0171). Keyed both sides is B662 (E0141), and keyless with a thumbturn and no exterior trim is B680 (E0191).
19) How resistant is the Schlage B660 deadbolt to drilling and forced entry?
The bolt is solid sintered steel with a hardened steel anti-saw pin insert, and Schlage states it is thicker than most Grade 1 deadbolt offerings. Hardened steel ball bearings shield the mounting bolts from drilling, and Torx screw packs are available if you want a less common driver. The cylinder collar spins freely and is broadly angled to defeat wrenching and prying, and a removable security shield covers the bolt against an ice pick worked through the door gap. Note that UL 437 cylinder attack listing applies to the B800 Series, not the B600.
20) What is a lighter duty indicator deadbolt than the Schlage B660-IS-LOC for a low traffic door?
The B660-IS-LOC is a heavy duty Grade 1 deadbolt. Where the traffic does not call for Grade 1, the Hager 3216 is a Grade 2 thumbturn x occupancy indicator deadbolt with a 1 inch throw for 1-3/4 inch doors and is fire rated; the Accentra D292 is a Grade 2 thumbturn x indicator deadbolt in the D Series covering 1-3/8 inch to 1-3/4 inch doors; and the Falcon D271 is a medium duty Grade 2 one-sided deadbolt with an occupancy indicator and a thumbturn inside. The B660 carries the same 1 inch throw as the Hager unit.
21) Which indicator locks can be keyed into an existing master key system?
The B660-IS-LOC is keyed, single cylinder, and ships with two keys; it takes a 6-pin conventional cylinder in the C keyway, an S123 keyway, or SFIC and FSIC less core so an existing core can be dropped in, and it can be ordered keyed different or keyed alike. Among the indicator peers, the Falcon H2171 is the other keyed unit, a single cylinder deadbolt in an interconnected restroom lock. The Arrow E50 is non-keyed and the Emtek 8383 Wilshire and its companion rosette styles are privacy bolts, so none of those enter a key system.
How fast can I get the Schlage B660P 626 IS-LOC 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 Schlage B660P 626 IS-LOC come with a warranty?
Absolutely. The Schlage B660P 626 IS-LOC 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 Schlage B660P 626 IS-LOC?
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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