Deadbolt locks are lock bolts you turn with a key or knob. They do not feature spring mechanisms and remain one of the most secure options in the industry. Frequently used on residential and commercial doors, deadbolt locks are challenging to bore or open with knives and similar tools. Here, the locksmiths at Cohen’s Key Shop Inc. in New Haven County, CT, outline what you need to know about these devices to help you make better home and business security decisions.

What to Know About Deadbolt Locks

Types

Deadbolt locks come in four main types: single cylinder, double cylinder, keyless cylinder, and jimmy-proof. Single cylinders are the most basic and can only be opened with keys on the exterior sides of doors. The interior sides feature knobs. Double cylinder models offer key access on both sides and are ideal for glass doors.

Keyless cylinders require fingerprints or passcodes to activate the unlocking mechanisms and close with knobs or buttons. Jimmy-proof locks, or “vertical deadbolts,” consist of interlocking bolts designed to prevent manual door openings. Bolts are made of steel and must extend one inch in diameter to provide security.

Benefits

These local locksmiths routinely recommend deadbolt locks because they are virtually impossible to open with a knife or related tool. Their lack of springs makes them challenging to disarm without keys while their hardened steel bolts prevent strong-handed physical blows. Burglars will generally not bother with trying to open them since they take too long to break, which increases their risk of getting caught. 

Considerations

If you want to purchase a deadbolt for your home, rental property, or other business, these New Haven locksmiths suggest double, jimmy-proof, or keyless options—especially if the doors have glass. Standard single cylinder locks are easy to open if the glass is broken because all they require is knob turning. You should also ensure these locks are installed correctly and securely to prevent any problems.

If you’re ready to update your locks, contact Cohen’s Key Shop. They have been proudly serving the New Haven area since 1897. These locksmiths provide installation, combination changes, and key replacement services for vehicles, motorcycles, boats, and homes. Call (203) 397-3528 or visit the website for more information about their services.