Beefy Matte Black Deadbolt With Thumbturn No Exterior Cylinder 1 Inch Dope Security For Interior Doors Standard Trim Easy Install Maximum Home Protection

Beefy Matte Black Interior Deadbolt with Thumbturn, 1 inch
✔️ 1-inch deadbolt with interior thumbturn, no exterior trim

This rugged interior deadbolt is designed for interior doors, delivering secure locking via a thumbturn from inside and no exterior cylinder or exposed trim. It’s ideal for doors with bore holes sized for this setup and helps prevent exterior unlocking.

✅ 1-inch deadbolt with hardened steel spinning pin protects against kick-ins
✅ No exterior cylinder or exposed trim; interior thumbturn only
✅ Fits backset 2-3/8" or 2-3/4"; door thickness 1-3/8" to 1-7/8"
✅ Self-aligning screw holes for easy DIY installation on both right and left doors

💡 What is the function of an interior thumbturn deadbolt with no exterior cylinder in a home security setup? This handy device helps secure interior doors by locking from inside only, preventing tampering from the outside.

- Increases interior security by keeping the locking inside the door
- Easy DIY installation with self-aligning screw holes
- Compatible with standard backsets and door thickness ranges
- Features a 1-inch bolt with hardened steel spinning pin for added kick-in protection