Auxiliary Locks

What is a rim deadbolt?

A rim deadbolt is a surface-mounted lock: the lock case sits on the inside face of the door, the strike mounts on the frame, and a rim cylinder passes through the door from the outside. Because it only needs a hole for the cylinder, it is a quick way to add security to an existing door, which is why it is also called an auxiliary lock. All the rim deadbolts in this category are Accentra (Yale) models, and each listing states a 2-3/8" backset and a 5-pin 1109E rim cylinder supplied as standard.

Boltlock, jimmy proof deadlock or security latch?

The three types in the catalog lock in different ways:

• 112 auxiliary deadbolt (boltlock): a horizontal deadbolt thrown by a 180 degree thumbturn inside (single cylinder) or a key inside (double cylinder, 112 1/4). The listing gives a 1-1/8" bolt length.
• 197 jimmy proof deadlock: a vertical bolt that interlocks with its strike, so the door and frame are held together and are harder to pry apart. Single cylinder models use a 90 degree thumbturn; double cylinder models (197 1/4) use a key.
• 80 and 88 auxiliary security latches: spring latches that lock automatically when the door closes; the 88 listing describes a slide button that deadlocks the bolt or holds it back.

Angle strike or flat strike?

Choose the strike by the way the door swings. An angle strike mounts on the face of the frame for doors that swing in. A flat strike is listed for outswinging doors, where the lock and strike sit flush on the same plane. Models with an F in the number, such as the 112F and 197F, come with the flat strike.

Single cylinder or double cylinder?

A single cylinder rim deadbolt has a key outside and a thumbturn inside, so the door opens from inside without a key. A double cylinder model (1/4 in the number) needs a key on both sides, which is used where glass near the lock would let someone reach the thumbturn. Double cylinder locks can conflict with egress rules on exit doors, so check with your code official before using one on a means of egress.

Rim cylinders and keying

These locks are listed with a 5-pin 1109E rim cylinder as standard. To match an existing key system, replace it with a rim cylinder in your keyway, such as the Kaba Ilco 7075 or a factory rim cylinder; see rim cylinders. Rim cylinders mount with a back plate and screws, and the tailpiece is cut to the door thickness.

When to choose a rim lock instead of a bored deadbolt

Choose a rim lock when you want to add a second lock without boring a 2-1/8" hole and an edge bore, or when the door already has a lock in the bored position. Rim locks also suit doors where the stile or the existing prep leaves no room for a cylindrical deadbolt. For new commercial doors with a standard prep, a Grade 1 or Grade 2 cylindrical deadbolt is the usual choice; compare options on our commercial deadbolts page.

Most requested rim deadbolts

The rim deadbolts our customers look up most often right now:

• Accentra (Yale) 112 Heavy Duty Single Cylinder Auxiliary Deadbolt
• Accentra (Yale) 112 1/4 Heavy Duty Double Cylinder Auxiliary Deadbolt
• Accentra (Yale) 197 Jimmy Proof Deadlock, Single Cylinder

Related categories: commercial deadbolts, mortise deadbolts and thumbturns.

What to have ready when ordering a rim deadbolt

• Lock type: auxiliary deadbolt, jimmy proof deadlock or security latch.
• Single or double cylinder.
• Door swing: angle strike for inswing, flat strike for outswing.
• Door thickness, and the keyway if the cylinder must match.
• Finish, such as sprayed brass or bronze.

Adding locks across a property? Request a quote, and schools and agencies can submit a government or school PO. Orders placed before 3:00 p.m. ET on business days ship the same day after card approval, and ground shipping is free on orders of $450+. Call 718-814-6300 to choose a rim lock.

The tables and selection notes on this page are compiled by National Lock Supply from the Yale auxiliary locks catalog and product listings. Last reviewed: November 2026.