Sure-Loc Arapaho Knob
- Hollow, egg-shaped knob
- Formed brass
- Entry and combo keyed alike in sets of four
- Adjustable 2⅜″ – 2¾″ (60-70mm) backset
- Fits doors 1⅜″ – 1¾″ (35-45mm) thick
Door Handing
Non-handed
Door Thickness
1 ⅜” to 1 ¾”
Key Cylinder
5 Pin KW1
5 Pin SC1 option
Strike Plate
2 ¼” x 1 ¾”full lip radius
corner standard
Latch
Adjustable 2 ⅜”- 2 ¾” backset
½” throw bolt
2 ¼” x 1” radius corner faceplate
or 4 way drive-in latch
Door Prep
Crossbore 2 ⅛”
Edgebore 1
Materials
Formed Brass
All metal parts
Manufacturer Resources
Product Specs
- Subcategory:
- Knobsets
- Product Type:
- Knobsets
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Commercial/Residential:
- Residential
- Handle Type:
- Knob
- Series:
- Arapaho
- Electronic:
- No
- Product Attribute:
- Cylindrical Locks
- Product Material:
- Brass
- Product Substrate:
- Brass
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware
Sure-Loc AR100 15 – Frequently Asked Questions
1) Which keyway does the Arapaho entry knob use, and can I key it to my existing Kwikset keys?
The keyed Arapaho functions ship with a 5 pin KW1 cylinder, with a 5 pin SC1 option if the rest of your building runs Schlage keys. Entry and entry/deadbolt combo sets are keyed alike in sets of four, which is what a landlord wants when a unit has a front door and a back door on the same key.
2) What's the difference between the Arapaho dummy, passage, privacy, entry and deadbolt combo?
Four functions plus a combo. Dummy is a surface-mounted pull with no latch, for closet and French door inactive leaves. Passage latches but never locks, for halls and closets. Privacy has a push-button or turn lock for bed and bath. Entry is keyed. The Entry Deadbolt Combo pairs the keyed knob with a deadbolt, keyed alike, for an exterior door.
3) Is the Sure-Loc Arapaho knob rated for commercial use?
No. The Arapaho is a residential knobset in formed brass, built for homes and multi-family interiors. For a school, office or other commercial opening that needs a Grade 1 or Grade 2 cylindrical knob, look at the Corbin Russwin CK4310 (Grade 1 passage) or the Dexter C2000 Series in Grade 2 entry, classroom, passage or privacy.
4) The Arapaho knob is residential duty. What should I use on a commercial opening instead?
The Sure-Loc Arapaho is classified as residential. For commercial and institutional openings, the comparable set includes Grade 1 cylindrical knob locks such as the BEST 8K Series heavy duty entrance knob lock, the Corbin Russwin CK4851 entrance/office lock for doors 1-3/8 inch to 2 inch thick, the Sargent 8XG04 Grade 1 storeroom knob lock with 2-3/4 inch backset, and the Falcon X101 Grade 1 passage knobset with interchangeable core, which carries a fire rating. Grade 2 options include the Sargent 6G04 storeroom lock and the Dexter C2000 Series entry/office knob.
5) I need a keyed entry knob that takes a Kwikset key like the Arapaho. What else works?
The Sure-Loc Arapaho entry and entry/deadbolt combo functions use a 5 pin KW1 cylinder, with a 5 pin SC1 option. The Cal-Royal BER00 is a Grade 3 entrance/office knob lock supplied with a Kwikset keyway for doors 1-3/8 inch to 1-3/4 inch thick. The Kwikset 400P-CP Polo keyed entry knob is another Grade 3 entry option covering the same 1-3/8 inch to 1-3/4 inch door range.
6) I need a keyless entry knob instead of the keyed Arapaho. What is available?
The Sure-Loc Arapaho entry function is a keyed mechanical knob using a 5 pin cylinder and is non-electronic. For keyless operation, the Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function, fitting doors 1-3/16 inch to 2 inch thick.
7) I need a fire rated knob lock; can I use the Arapaho?
The Sure-Loc Arapaho is a residential formed brass knobset. Where a fire rating is required on the opening, the Falcon W101 Grade 2 medium duty passage knob lock and the Falcon X101 Grade 1 heavy duty passage knobset with interchangeable core are both listed as fire rated, with the X101 covering doors 1-3/8 inch to 2-1/4 inch thick.
8) What finishes does the Arapaho knob come in?
Four finishes across every function: 11P Vintage Bronze, 15 Satin Nickel, 15A Antique Nickel, and FBL Flat Black. All four are available in dummy, passage, privacy, entry and entry/deadbolt combo, so you can run one finish through an entire unit or floor without mixing functions and looks.
9) I need an egg-shaped knob but my doors are 2 inches thick. What else can I use?
The Arapaho tops out at 1-3/4 inch doors, so it won't work. The Deltana 3381 Egg Knob entry set covers 1-3/8 to 2 inch doors and keeps the egg shape. Deltana's 6171 Round Knob entry covers the same thickness range if the profile is less important than the fit.
10) Can I order Arapaho entry knobs keyed alike for a whole rental unit?
Yes, entry and entry/deadbolt combo sets are keyed alike in sets of four. That covers a typical unit's front, back and garage-to-house door on one key. Cylinders are 5 pin KW1 as standard with a 5 pin SC1 option, so pick the keyway that matches whatever the rest of the property already runs before you order.
11) I only need passage and privacy knobs for interior bedroom and closet doors, not a full Arapaho set. What are the options?
The Sure-Loc Arapaho covers passage and privacy functions across its four finishes. If you want to buy those functions individually, the Pamex FTF Baron knobset comes in a passage version and a privacy version, both Grade 3 for doors 1-3/8 inch to 1-3/4 inch thick. Dexter's C2000 Series offers Grade 2 passage and Grade 2 privacy ball knobs over the same door range. Cal-Royal BER20 is a Grade 3 privacy knob with brass trim. Arrow's MK01 and RK01 are Grade 2 non-keyed passage knobs.
12) The Arapaho has an adjustable backset. Which alternatives are fixed at one backset?
The Sure-Loc Arapaho uses an adjustable 2-3/8 inch to 2-3/4 inch latch, or a 4-way drive-in latch. Some peers are supplied at a single backset instead: the Baldwin Estate 5000 Baltimore passage and privacy knobs are preconfigured at 2-3/8 inch with a full lip strike, the Omnia 458/0 single dummy is listed at 2-3/8 inch, and the Falcon W101 Grade 2 passage knob lock and Sargent 8XG04 Grade 1 storeroom lock are listed at 2-3/4 inch. Kwikset's 200P-CP passage and 400P-CP entry knobs ship with a round corner adjustable latch.
13) I need an entry knob for a classroom or storeroom opening, not a residential entry like the Arapaho.
The Sure-Loc Arapaho is a residential knobset in passage, privacy, entry, entry/deadbolt combo, and dummy functions. Institutional functions come from other lines: the Dexter C2000 Series offers a Grade 2 classroom ball knob lock for doors 1-3/8 inch to 1-3/4 inch thick, Sargent 6G04 is a Grade 2 storeroom/closet knob lock with a single cylinder, and Sargent 8XG04 is the Grade 1 heavy duty storeroom equivalent. The Sargent 28C-KNOB is a classroom-function knob trim for exit devices on 1-3/4 inch doors.
14) Which knobsets are graded, if the Arapaho is specified as residential?
The Sure-Loc Arapaho is a residential knobset. If a project requires a stated ANSI grade, Grade 3 knob entry sets in the comparable set include Callan Canova, Callan Santo, Delaney Belton, Delaney Galway, Delaney Olivia, Master Lock BC Series biscuit knob, and Pamex FTF Baron entrance/office. Grade 2 entry options include Callan Edgewood and Callan Roland, and Grade 2 passage options include Bravura Albany, Bravura Lynchburg, and Bravura Dallas.
How fast can I get the Sure-Loc AR100 15 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 Sure-Loc AR100 15 come with a warranty?
Absolutely. The Sure-Loc AR100 15 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 Sure-Loc AR100 15?
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 Sure-Loc AR100 15 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.