Hager 3600 Series 3680 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$197.88
$121.43
Hager 3600 Series 3680 Grade 1 Storeroom Cylindrical Lock with Adjustable Backset

Hager 3600 Series 3680 Grade 1 Storeroom Cylindrical Lock with Adjustable Backset

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Model: 3680 WTN 26D
$197.88
$121.43
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$197.88
$121.43
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Hager 3600 Series 3680 Grade 1 Storeroom Cylindrical Lock with Adjustable Backset

Professional Commercial-Grade Cylindrical Lock Solution

The Hager 3600 Series 3680 delivers Grade 1 performance for demanding commercial applications with adjustable 2-3/8" to 2-3/4" backset and 1-3/8" to 1-3/4" door thickness compatibility. This non-handed storeroom function cylindrical lock features a deadlocking latchbolt with 1/2" throw and stainless steel construction for reliable security. BHMA certified to ANSI A156.2 Series 4000 Grade 2 standards and UL listed for 3-hour fire rating applications.

Professional Features & Benefits

  • Adjustable Backset: 2-3/8" to 2-3/4" (60mm - 70mm) adjustment accommodates various door preparations without modification.
  • Door Thickness Compatibility: Fits 1-3/8" to 1-3/4" (35mm - 45mm) doors for versatile installation options.
  • Grade 1 Performance: BHMA certified to ANSI A156.2 Series 4000 Grade 2 standards for heavy-duty commercial applications.
  • Fire-Rated Construction: UL/cUL listed for all functions up to 3 hours "A" label single doors with UL 10C Positive Pressure rating.
  • Deadlocking Latchbolt: 1/2" (13mm) throw stainless steel latchbolt prevents manipulation when door is closed.
  • Non-Handed Design: Universal installation eliminates field determination requirements and reduces inventory needs.
  • Professional Trim Construction: Wrought brass, bronze, and stainless steel rose with zinc-based plated lever matching BHMA finish symbols.
  • Manufacturer Warranty: 5-Year warranty coverage for added confidence and protection.

Technical Specifications

  • Applications: Medium Duty Commercial; Heavy Duty Residential
  • Backsets: Adjustable 2-3/8" - 2-3/4" (60mm - 70mm)
  • Certifications: ADA Compliant ANSI A117.1 Accessibility Code; UL/cUL Listed for all functions up to 3 hours "A" label single doors; UL 10CPositive Pressure Rated; BHMA Certified ANSI A156.2, Series 4000, Grade 2
  • Commercial/Residential: Commercial
  • Cylinder and Keyways: Keyed Different - standard; Cylinder drilled 6 pin, Keyed 5 pin - standard; Other Keying options, including 6 pin keyed, available from factory; Zero bit cylinders will be 6 pin keyed; SFIC uncombinated or combinated, brass 6 pin or 7 pin cores sold separately
  • Door Strike: ASA Strike
  • Door Thickness: 1-3/8" to 1-3/4"
  • Finishes: US3, US4, US10B, US26, US26D
  • Functions: Storeroom (F86)
  • Grade: Grade 1
  • Handle Type: Lever
  • Keyed: Yes
  • Lock Type: Cylindrical
  • Notes: No exposed mounting screws; Non-handed
  • Options: Split Finish
  • Series: 3600 Series
  • Strikes: 1-1/4" x 4-7/8" (32 mm x 124 mm) ASA strike; Optional strikes available
  • Subcategory: Cylindrical Locks
  • Warranty: 5 Year

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Hager Quality?

Hager 3600 Series cylindrical locks deliver professional-grade reliability with wrought brass, bronze, and stainless steel construction rated for Grade 1 commercial performance. UL listed for 3-hour fire rating and BHMA certified to ANSI A156.2 standards with comprehensive 5-Year warranty coverage. Engineered for demanding commercial applications where dependable security and long-term performance are essential.

Grade 2 cylindrical lock suitable for light commercial and institutional applications.

Product Specs

Warranty:
5 Year
Keyed Function:
Single Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Subcategory:
Cylindrical Locks
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Handle Type:
Lever
Grade:
Grade 1
Product Attribute:
Cylindrical Locks
Series:
3600 Series
Product Model:
3640
Backset (Distance):
2-3/8 or 2-3/4
Product Function:
Storeroom
Door Thickness Range:
1-3/8" to 1-3/4"
Door Strike:
ASA Strike
Product Category:
Mechanical Locks
Department:
Door Hardware

Hager 3680 WTN 26D – Frequently Asked Questions

1) Will the Hager 3680 storeroom lock fit a 1-3/8 inch door, or does it need a 1-3/4 inch door?
Both. The Hager 3600 Series 3680 cylindrical lock covers a 1-3/8 to 1-3/4 inch door thickness range, so it works on older 1-3/8 inch interior doors as well as standard 1-3/4 inch commercial doors with no extra kit.
2) My doors are bored at 2-3/8 inch backset and some at 2-3/4 inch. Do I have to order two different locks?
No. The 3680 uses an adjustable latch that sets to either 2-3/8 or 2-3/4 inches, so one part number covers both preps. That is the main reason it is worth stocking a single SKU across a mixed building.
3) What does storeroom function mean on the Hager 3680, and is it right for a mechanical room?
Storeroom (F86) means the outside lever is always locked and the key retracts the latch for entry. The inside lever always turns for free egress, and there is no button or thumbturn to leave it accidentally unlocked. That is exactly what you want on a mechanical room, electrical closet, or storage room where the door has to stay secure every time it shuts.
4) Can I use the Hager 3680 lever lock on a fire rated door?
Yes. The 3600 Series is UL/cUL listed for all functions up to 3 hour A label single doors and carries a UL 10C positive pressure rating, which is what an inspector looks for on a rated opening.
5) Will the Hager 3680 latch into the strike already in my hollow metal frame?
If the frame has the standard ASA prep, yes. The 3680 ships with a 1-1/4 x 4-7/8 inch ASA strike, and the deadlocking stainless latchbolt has a 1/2 inch throw. Optional strikes are available if your frame is prepped differently, for example a wood door with a full lip strike.
6) How does the Hager 3680 get keyed, and can I put small format interchangeable cores in it?
Standard build is keyed different with a 6 pin drilled cylinder keyed 5 pin. Other keying, including 6 pin keyed, is available from the factory, and zero bit cylinders come 6 pin keyed. SFIC is supported, uncombinated or combinated, using brass 6 pin or 7 pin cores that are sold separately, so budget for cores if you are standardizing a facility on an interchangeable core system.
7) What is a lower-cost alternative to the Hager 3680 storeroom lever for a storage room that does not need Grade 1?
The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt, and it fits the same 1-3/8 inch to 1-3/4 inch door thickness range as the Hager 3680. Both give you the storeroom behavior of a always-locked outside lever released by key, with the inside lever always free. The Hager 3680 carries a Grade 1 rating and an adjustable 2-3/8 inch to 2-3/4 inch backset, so the AG05 is the choice where a Grade 2 cycle rating satisfies the spec.
8) Which Grade 1 cylindrical lever should I use if the door is 1-3/4 inch to 2 inch thick?
The Hager 3680 covers 1-3/8 inch to 1-3/4 inch doors, so a thicker leaf needs a different chassis. The Corbin Russwin CL3110 is a Grade 1 vandal resistant cylindrical lever rated for 1-3/4 inch to 2 inch doors, and the Falcon K101 is a Grade 1 cylindrical lock listed for 1-3/8 inch to 2-1/4 inch doors. Both of those are passage function, so on a door that must stay locked you would order the keyed storeroom version of that series instead.
9) What should I order instead of the Hager 3680 for a classroom door?
Storeroom function on the Hager 3680 keeps the outside lever locked at all times with key access only, which does not give a teacher the ability to lock or unlock the outside lever from the key side at will. For that opening the Dexter C1000 classroom lever is a Grade 1 keyed cylindrical lock for 1-3/8 inch to 1-3/4 inch doors, and the Dexter C1000 classroom security version adds a second keyed control. The Cal-Royal AG03 is a Grade 2 classroom lever on a 2-3/4 inch backset.
10) The Hager 3680 will not work on my door because it needs to release on fire alarm. What is the alternative?
The Hager 3680 is a mechanical storeroom lock with no electrical control. For an opening that must unlock on alarm or access control release, the Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever running 12VAC/DC, listed for 1-3/4 inch to 2 inch doors, and is also offered in a keyed 12VAC/DC configuration. Confirm the door thickness, since the CL33903 range starts where the 3680 range ends.
11) Do I need to know the handing before ordering the Hager 3680?
No handing to determine. The 3680 is non-handed, so the same lock goes on a left or right hand door without field conversion. It also has no exposed mounting screws on the outside rose.
12) What is the difference between the Hager 3680 and a Grade 2 storeroom lever like the Cal-Royal AG05?
Both are storeroom function cylindrical levers with a deadlocking latch and both cover 1-3/8 to 1-3/4 inch doors. The Hager 3680 is listed at Grade 1, the Cal-Royal AG05 at Grade 2. Grade 1 is the heavier cycle and strength tier, which is what most institutional and government specs call for on corridor and storage doors; Grade 2 is commonly accepted in light commercial and multifamily work.
13) I need matching passage and classroom levers on the same project. What else can I pair with the Hager 3680?
If you want everything at Grade 1 across a corridor, the Dexter C1000 Series covers classroom and passage in the same 1-3/8 to 1-3/4 inch door range, and adds an asylum function at 1-3/8 to 2 inches. Falcon K101 is a Grade 1 passage lever with a wider 1-3/8 to 2-1/4 inch door range and a fire rating. Trim styles will not match the Hager lever, so keep one brand per elevation if appearance matters.
14) Does the Hager 3680 meet ADA lever requirements for an accessible opening?
Yes, it is a lever handle lockset stated as ADA compliant to the ANSI A117.1 accessibility code, so it satisfies the no tight grasping or twisting requirement for accessible doors.
15) I need the matching non-keyed lever for the office and closet doors next to a Hager 3680 storeroom door. What works?
The Hager 3680 is a keyed storeroom lever, so a companion opening that only needs latching takes a passage set. Grade 1 passage options include the Dexter C1000 passage lever for 1-3/8 inch to 1-3/4 inch doors, the Falcon K101 passage lock with non-handed levers, and the Design Hardware X75 passage lever for 1-3/4 inch doors. If the adjacent door is an office that locks from the inside, the Falcon B511CP6D is a Grade 2 entry/office cylindrical lever.
16) Is a Grade 1 dummy lever like the BEST 9K 1DT an equivalent to the Hager 3680?
No. The BEST 9K 1DT is a single dummy trim, a non-keyed lever with no latch or chassis behind it, used on inactive leaves and closet fronts. The Hager 3680 is a keyed storeroom cylindrical lock with a latchbolt and an ASA strike. If you want dummy trim to visually pair with working locks, the BEST 7KC 1DT is the Grade 2 counterpart.
17) What do I use instead of the Hager 3680 on a behavioral health or detention-type utility door?
Those openings normally call for asylum function rather than storeroom, which is what the Hager 3680 provides. The Dexter C1000 asylum F87 lever is Grade 1 and covers 1-3/8 inch to 2 inch doors. The Arrow MK33-BD-CS is a heavy duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder if knob trim is acceptable.
18) Can I use a keypad lever in place of the Hager 3680 to avoid issuing keys?
Mechanical keypad levers cover the same door but change how access is granted. The Lockey 2835 is a mechanical pushbutton keyless lever with passage function and ADA compliance for 1 3/16 inch to 2 inch doors, and the Lockey 1150 heavy duty keypad lever set with adjustable backset fits 1-1/8 inch to 2 inch doors. The Hager 3680 is a keyed storeroom lock on a single cylinder, so it ties into an existing key system while the Lockey units run on a combination.
19) Is a Grade 3 residential entry lever a substitute for the Hager 3680 in an apartment building?
They are different duty classes. The Master Lock RL series keyed entry lever and the Callan Artino entrance leverset are Grade 3, and the Kwikset 200BRNL Breton passage lever is Grade 3 for 1-3/8 inch to 1-3/4 inch doors. The Hager 3680 is a Grade 1 commercial cylindrical lock with storeroom function. Use the Grade 3 sets on unit interior doors and keep the 3680 where the traffic and the spec call for commercial duty.
20) What finishes does the Hager 3600 Series storeroom lock come in, and can I mix finishes side to side?
Finishes run US3 bright brass, US4 satin brass, US10B oil rubbed bronze, US26 bright chrome, and US26D satin chrome. Split finish is an available option if the corridor side has to match one finish and the room side another. Roses are wrought brass, bronze, or stainless with a zinc based plated lever matched to the BHMA symbol.
21) What prep drawings do I need to install the Hager 3600 Series on a wood door?
Hager publishes a wood door prep sheet and a wood door prep template for the 3600 Series, plus the 3600 Series installation instructions. Use the template to lay out the cross bore and edge bore before drilling, and set the latch to the 2-3/8 or 2-3/4 inch backset that matches the prep.
How fast can I get the Hager 3680 WTN 26D 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 Hager 3680 WTN 26D come with a warranty?
Absolutely. The Hager 3680 WTN 26D 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 Hager 3680 WTN 26D?
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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