The best grade of deadbolt lock is Grade 1. The grades are assigned by the American National Standards Institute (ANSI). This non-profit group was developed by the Builder's Hardware Manufacturers (BHMA) to set standards for a variety of industries.
Grade 1 not only meets commercial building requirements, it also provides the best security available against vandalism and heavy usage. Grade 2 meets light commercial requirements and exceeds residential building requirements. These locks are adequate for lighter duty doors where security is less of an issue.
A lock's security is denoted by its American National Standards Institute (ANSI) grade, with Grade 1 the most secure and Grade 3 the least. A builder-quality tubular lock will likely be a Grade 3, a good-quality handleset a Grade 2.
Grade 2 – Higher Residential Security Designed to offer excellent security and durability. Used mostly for residential applications and some light commercial applications. Grade 3 – Basic Residential Security The lowest grade provided by ANSI, and the minimal acceptable quality for residential door locks.
ANSI Grade I
They're mostly used in high-security and commercial settings like banks and office buildings. They're also being used in residential settings as a result of the increased need for home security. ANSI Grade 1 locks are the strongest, most expensive type of lock you can buy for residential use.
Schlage mechanical locks include ND Series Grade 1 and ALX Series Grade 2 cylindrical locks designed to suite perfectly for a visually seamless look when used together.
Schlage mechanical deadbolts and F-series handlesets are graded AAA in residential Security, Durability and Finish. When you want to make your home your sanctuary, someplace you feel both secure and comfortable in all ways possible, you know you can turn to Schlage.
CR's take: The Medeco Maxum 11TR503-19 is the strongest deadbolt across all of our lock categories. It's top-notch for drilling, withstands kick-ins very well, and is designed in a way that makes it quite difficult to pick.
ANSI Grade 1 (Best) - Kwikset - Classic - Deadbolts - Door Locks - The Home Depot.
Schlage and Kwikset are two of the most popular lock manufacturers on the market. Both brands make excellent locks that homeowners can easily install, but Schlage locks tend to offer higher security and reliability and are trusted by big businesses.
Seek out saw resistance. Another thing to look for when choosing a deadbolt lock is a saw-resistant bolt. These bolts make it much more difficult for a potential burglar to break in by sawing through your lock. It's an excellent deterrent, and it's important to make sure your locks have this feature.
1) EVVA MCS
Each key has a complex rounded shape, this coupled with the magnetic element makes it an extremely hard lock to pick. The only way to gain access to the door would be for the key to be cloned, and in that case, a master locksmith would need to get their hands on the original key.
Single cylinder deadbolts are quite common in residential homes. Such locks use a key slot on one side with a thumb-turn mechanism on the other side; the key slot generally faces the outside of a door. This system also allows you to unlock and lock single cylinder deadbolts using a thumb turn from the inside.
In order to qualify for an ANSI Grade 2 rating, each locks has to go through 400,000 opening and closing cycles, 4 strikes to the door with a hammer and a 250 lb. weight test. Grade 2 locks are the economical choice for commercial building with standard traffic flow.
Security — Since a key is required to unlock them from both the inside and outside, double-cylinder deadbolts offer an extra layer of security. Deters burglars — Since they are more difficult to pick, most burglars will move on to an easier target.
For one, double-sided deadbolts are the most secure lock. This is especially important if your front door is located near a window that can be easily opened or broken, or if the door itself is made of glass.
Quality smart locks come with the same safety features as traditional locks, only with the added protection of: Required logins. You must have an account and password to access your smart lock's features. Encryption.
Since Schlage locks are made of stronger materials, and provide far greater security than Kwikset locks, they also come with a higher price tag.
Because Schlage locks are made of stronger materials, are superior in their mechanism, and provide far greater security than Kwikset locks, it should be mentioned that they are more expensive compared to Kwikset.
Basic Cylinder Locks
Deadbolts use a solid piece of metal to secure the door, while standard cylinder locks use a spring to help make it easier to lock the door. Unfortunately, the spring does not provide much security and it can easily be forced. Deadbolts, however, are still vulnerable to lock picking.
Abloy Protec2 PL 330 Padlock
It is one of the only locks in the world that has never been picked. It has a hardened boron alloy steel shackle to provide resistance to bolt cutters (but is not bolt cutter proof). The padlock body is brass and the shackle and body are chrome plated, so it is very rust-resistant.
Available in single- and double-cylinder styles, deadbolts are rated according to their strength from Grade 1 to Grade 3. A Grade 1 is the highest grade and provides the most security.
BHMA is a group of industry experts who grade residential door hardware performance in the categories of Security, Durability and Finish. A grade of 'C' is good, 'B' is better, and 'A' is best. A grade of AAA is the best grade possible in all three categories.
High security grade
It not only has the highest residential security score from the ANSI and BHMA (the two main security organizations that grade locks), but the Schlage Encode also scores a ANSI/BHMA Commercial Grade 1 rating, which is the highest grade possible.
Grade 2 is a medium grade and capable of operating through 400,000 cycles while withstanding 450 lbs of force per inch for lever locks. A good choice for light commercial areas. Grade 3 is the lowest grade. It must operate for a minimum of 200,000 cycles and withstand 225 lbs of force per inch for lever locks.