SC1 Schlage Killer Key — Set of 2 Professional Locksmith Lockout Tool
Set of 2 SC1 Killer Keys (also called Lockout Keys or Disabling Keys) pre-cut to disable a Schlage SC1 cylinder when inserted. Solid brass construction with a polished gold finish. A professional tool used by locksmiths, property managers, landlords, and building maintenance teams to quickly secure a lock against unauthorized access until it can be re-keyed or replaced.
Cuts to the standard SC1 (Schlage "C") 5-pin keyway, which fits the vast majority of Schlage residential and light commercial locks. Two keys per set so you have a backup on the truck or in the office.
Product Details and Shipping
Quantity: 2 keys per set
Keyway: SC1 (Schlage "C" keyway, 5-pin)
Type: Pre-cut lockout key (Killer Key)
Compatible with: Schlage residential and light commercial 5-pin C keyway locks
Material: Solid brass
Finish: Polished gold (brass)
Bow Style: Standard Schlage rectangular bow
Stamp: SC1
Use: Professional locksmith and property management lockout tool
Condition: Brand new, unused
Free shipping with tracking included on every order. Ships USPS Ground Advantage within one business day from a smoke free shop. Fast shipping is a priority - orders placed before noon local time typically ship the same day. Combined shipping is automatic on multi-set orders, all keys go out in one package at no extra cost.
Important Notes - All Sales Final
This is a professional locksmith tool. By purchasing this item, you confirm you are the legal owner of the lock you intend to use it on, or you are an authorized locksmith, property manager, or maintenance professional acting on the property owner's behalf. The buyer is solely responsible for proper and lawful use. Misuse of lockout keys to disable property you do not own or are not authorized to access may violate local, state, or federal law.
Once inserted into a lock, a killer key is designed to disable the cylinder. The affected cylinder will require professional re-keying or replacement to restore function. Buyer is responsible for verifying the lock is an SC1 cylinder before use. Schlage locks only. Will NOT fit Kwikset, Yale, or other non-Schlage keyways.
ALL SALES FINAL. NO RETURNS ACCEPTED. Due to the specialty nature of this professional locksmith tool and the security implications of chain-of-custody for lockout devices, all sales are final and no returns are accepted. Please confirm your lock is SC1 compatible and review the product details carefully before purchasing.
Frequently Asked Questions
What is a killer key?
A killer key, also called a lockout key or disabling key, is a pre-cut key designed to render a lock cylinder inoperable. When inserted into the matching keyway, it prevents the original key from turning the lock. It is a professional tool used to quickly secure a lock against unauthorized access.
Who uses these?
Locksmiths, property managers, landlords, building maintenance teams, and rental property owners. Common use cases include disabling a lock after a tenant moves out without returning keys, securing a property after a break-in attempt while waiting for a re-key, and emergency lockouts where immediate disabling is required before a full lock replacement.
Will the lock still work after using this?
No. That is the purpose of the tool. After a killer key has been used on a cylinder, the lock will need to be professionally re-keyed or replaced before it will operate again. Plan to schedule that work before using a killer key.
Will it fit my Schlage lock?
It fits any SC1 5-pin keyway, which covers the vast majority of Schlage residential deadbolts and entry knobs. It will not fit Kwikset (KW1), Yale, Master, or other non-Schlage keyways. If your existing key has 6 cuts, you may have an SC4 commercial Schlage lock and need a different killer key. Confirm your lock uses the SC1 keyway before purchase.
What is the difference between SC1 and SC4?
SC1 is the 5-pin Schlage residential keyway used in standard home Schlage locks. SC4 is the 6-pin commercial variant with a longer blade. This SC1 killer key fits 5-pin Schlage cylinders only.
Is this legal?
Yes, killer keys are legal locksmith tools sold openly. However, the buyer is responsible for lawful use. Using a killer key on a lock you do not own or are not authorized to disable may violate trespassing, vandalism, or property damage laws depending on your jurisdiction. By purchasing, you confirm you intend to use the tool lawfully.
How fast do you ship?
Fast shipping is a priority. Same-day shipping on orders placed before noon local time, next business day otherwise. Free USPS Ground Advantage shipping with tracking included on every order.
Do you accept returns?
No. All sales are final. Due to the specialty nature of this professional locksmith tool and chain-of-custody considerations for lockout devices, returns are not accepted. Please verify compatibility and review the product carefully before purchasing.
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