A grade 2 security padlock will give you a 1000 key differs and will have some resistance against pulling, twisting and cutting of the shackle. A grade 3 security padlock will have 2500 key differs and its shackle will be about twice as strong as a grade 2 padlock.
If you're looking for the highest security padlock to protect your buildings and belongings, then we recommend using a CEN grade 6 or 5 padlock, as these will provide the highest level of protection.
Grade 1 requires a key in knob must hold up to 300 lb-in and a lever lock must withstand 450 lb-in. Grade 2 requires a key in knob, must hold up to 150 lb-in and a lever must hold up to 225 lb-in. Grade 3 requires a key-in-knob to withstand at least 120 lb-in and a lever lock must withstand at least 180 lb-in.
ANSI Grade 2- This is a high residential security or low commercial grade. It is designed to offer superior security and durability for homes and light commercial use. ANSI Grade 3 - This is a basic residential security lock that meets the lowest acceptable quality standards for locks by the ANSI.
What is Lock Grade 2. Lock grade 2 is the next level up in terms of testing and security. Grade 2 locks are not usually sufficient for many commercial buildings, but they exceed the building requirements for residential buildings. Grade 2 door knobs must handle 400,000 cycles, 4 door strikes and a 250-pound weight test ...
Also in the non-forced entry category, there is no doubt Schlage is better. With a better, more precise manufacturing process and 2 additional security pins than the Kwikset deadbolt, Schlage locks are significantly harder to pick, bump or compromise in non-destructive ways.
The BHMA/ANSI has three, separate grades for deadbolts, simply labeled grades 1 through 3. Grade 1 is the highest quality, and the most dependable deadbolt you can have. Grade 3 is your average deadbolt which will provide an accepted, but minimal, level of security.
ANSI Grade 1 (Best) - Kwikset - Door Locks - Door Hardware - The Home Depot.
ANSI GRADE
The American Nation Standards Institute (ANSI) grading system for deadbolts was developed by the Builder's Hardware Manufactures (BHMA). This grading system ranges from 1 (the highest grade) to 3 (the lowest grade). It factors in longevity of the lock, toughness, and latch length.
ANSI Grade 1 door locks offer the highest level of lock security. These locks are very difficult to pick or break and are resistant to any tampering with the lock's parts like removing pins, screws, etc. They're mostly used in high-security and commercial settings like banks and office buildings.
Bump-proof locks are just more resistant to picking and bumping. Their resistance comes from an extra set of tumblers, which gives the key two jobs to do. It creates a more complicated locking mechanism, making the lock more resistant to these attacks.
The rating issued by the American National Standards Institute (ANSI) can help you suss out the strongest door locks available. Locks are given a grade rating of 1, 2, or 3 based on a lock's durability and its potential to withstand attempted forced entry. Grade 1: This is the highest rating a lock can receive.
Storeroom locks are used when the outside lever should be locked at all times. A key is used to retract the latchbolt and open the door; when the key is removed the door is locked on the outside. There is no means to lock/unlock the door from the inside.
CEN Grade 6 padlocks are very rare and as such most companies would recommend a grade of 3 to 5 for high security applications. Grade 6 – Maximum Security. Grade 5 – Extra High Security. Grade 4 – High Security. Grade 3 – Medium to High Security.
The grade ratings are: GRADE 6 – Maximum Security. GRADE 5 – Extra High Security. GRADE 4 – High Security. GRADE 3 – Medium / High Security.
ABUS Granit™: one of the world's most secure padlocks with a tensile resistance of over six tonnes. Granit locks have a tensile resistance of over six tonnes, making it almost impossible for attackers to release the shackle from the lock body by force.
Kwikset 980 Single Cylinder Deadbolt
The Kwikset 980 has a top security rating and is resistant to lock picking, bumping, and drilling. The 980 is easy to install and fits most standard doors.
The Kwikset Signature Series deadbolt with Home Connect featuring Z-Wave™ protocol to enable true remote locking and unlocking. Homeowners can remotely access and control the lock from anywhere in the world, using a smartphone, tablet, or Internet-connected device.
The Smart Key (or SmartKey) is a user-rekeyable wafer lock made by Kwikset and Weiser (Canada). It uses five wafers that interact with a sidebar to provide protection against lockpicking and key bumping.
In the U.S., there is no single comprehensive law against dual-cylinder deadbolts. Individual cities and states have local property and fire codes that may prohibit the use of dual-cylinder deadbolts. The code may prohibit the use of dual-cylinder deadbolts in some buildings and allow them in others.
Generally, single-cylinder deadbolts are less secure than double-cylinder options. They could potentially allow easier access to the home from intruders in the know. Furthermore, they're easy for small children to use, which means they could get outside without anyone being aware.
Baldwin and Kwikset are part of Hardware and Home Improvement (HHI), a major manufacturer and supplier of residential locksets, residential builders' hardware and faucets with a portfolio of renowned brands, including Kwikset®, Weiser®, Baldwin®, National Hardware®, Stanley®, Pfister™ and EZSET®.