Looking for the best Grade 1 commercial locks to secure your business? We’ve compiled a list of top 10 options from trusted brands, offering the highest level of security and reliability to help you make a confident choice.
Securing your commercial space is crucial for peace of mind. Grade 1 locks offer the highest level of security, making them ideal for businesses. These locks are built tough to handle heavy use and keep your property safe.
From deadbolts to lever locks, there’s a Grade 1 option for every need. Brands like BRINKS, MiLocks, and Schlage are trusted names in security. Each lock is designed to meet strict standards for reliability and strength.
Ready to find the perfect lock for your business? Let’s explore the best Grade 1 commercial locks and help you make a confident choice.
List of Top 10 Grade 1 Commercial Locks
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
BRINKS Commercial – Single Cylinder Deadbolt Lock, Satin Chrome Finish – Meets ANSI Grade 1 Standards and has 3-Hour UL Fire Rating |
This BRINKS Commercial Deadbolt Lock is perfect for anyone who wants extra security for their home or business. It’s easy to install and works great for interior or exterior doors. |
|
![]() |
MiLocks Grade 1 Commercial Heavy Duty Entry Door Lever, Industrial Cylindrical Lockset with Keys, Satin Nickel Finish, Easy Install for Office High Traffic Areas |
This lock is perfect for busy places like offices, schools, and hospitals. It’s easy to use and very secure, making it great for high-traffic areas. |
|
![]() |
BRINKS Commercial – Single Cylinder Deadbolt Lock, Matte Black Finish – Meets ANSI Grade 1 Standards and has 3-Hour UL Fire Rating |
This BRINKS Commercial Deadbolt Lock is perfect for anyone who wants top security. It’s great for homes or businesses needing a strong, fire-rated lock. |
|
![]() |
McAvory Cylinder Locks, Commercial Door Lock, Adams Rite Style, Heavy Duty, 2 Keys, Thumbturn, Duronotic Bronze, 1 Pack |
The McAvory Cylinder Locks are perfect for business owners who need a reliable and heavy-duty lock for their storefront doors. It’s easy to install and works great with glass doors and narrow aluminum frames. |
|
![]() |
HISAFE Storeroom Grade 1 Commercial Door Locks Heavy Duty Door Lever in Public Buildings, Non-Handed, UL 3 Hour Fire Rated, ADA Compliant, Brass Latch, 2-3/4”Backset, Satin Chrome 26D |
This HISAFE Storeroom Grade 1 Commercial Door Lock is perfect for public buildings needing heavy-duty security. It’s ideal for offices, schools, or warehouses where self-locking doors and emergency exits are essential. |
|
![]() |
Schlage Commercial CL500FLC-26D Commercial Entry Standard GR1 Clarendon Door Lock with Cylinder |
This Schlage Commercial Door Lock is perfect for businesses needing reliable security. Its Grade 1 rating and UL-approved latch make it ideal for high-traffic areas. |
|
![]() |
MiLocks Commercial Door Lever Lock, Grade 1 Lockset Cylindrical Lever Industrial Heavy-Duty Locking Door Handles for Office (Passage, Satin Nickel) |
This MiLocks Commercial Door Lever Lock is perfect for busy places like offices, schools, and hospitals. It’s easy to use, works on any door, and keeps everyone safe. |
|
![]() |
SUMBIN Commercial Mortise Lock Meet Ansi Grade 1 with Cylinder and Thumbturn for Entry Door |
This commercial mortise lock is perfect for anyone needing a secure, durable lock for their entry door. It’s ideal for new doors, offering extra security with its ANSI Grade 1 rating and stainless steel design. |
|
![]() |
Master Lock 3KALF Outdoor Padlock with Key, 1 Pack |
This Master Lock is perfect for anyone who needs a strong and secure lock for their outdoor spaces. It’s great for gates, sheds, garages, and tool boxes. |
|
![]() |
Master Lock ProSeries Brass Padlock, Set Your Own Combination Lock, Commercial Grade Locks with Code for Tools, Fences, Gates, 2-1/4 inches Wide, 1177D |
This padlock is perfect for commercial and industrial users needing secure, customizable locks. Set your own 4-digit combination with 10,000 options, use ergonomic dials in any light, and enjoy lasting protection with a shackle seal and dust cover. |
Detailed Reviews
Discover the top 10 Grade 1 Commercial Locks in this expert-curated guide. Each lock is thoroughly reviewed for security, durability, and ease of use. Whether you need heavy-duty protection or sleek design, this list has you covered. Find the perfect lock to keep your space safe and secure today.
1. BRINKS Commercial – Single Cylinder Deadbolt Lock, Satin Chrome Finish – Meets ANSI Grade 1 Standards and has 3-Hour UL Fire Rating

The BRINKS Commercial Deadbolt Lock is tough and reliable. It’s made from corrosion-resistant steel and meets ANSI Grade 1 standards. This lock keeps your space safe and secure.
It fits most doors and is easy to install. The adjustable latch works with 2-3/8″ or 2-3/4″ backsets. It’s perfect for homes or businesses.
This lock has a 3-hour UL fire rating and a saw-resistant latch. The Brink’s name means quality you can trust. Keep your belongings safe with this lock.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This BRINKS Commercial Deadbolt Lock is perfect for anyone who wants extra security for their home or business. It’s easy to install and works great for interior or exterior doors.
Ready to Purchase?
2. MiLocks Grade 1 Commercial Heavy Duty Entry Door Lever, Industrial Cylindrical Lockset with Keys, Satin Nickel Finish, Easy Install for Office High Traffic Areas

The MiLocks Grade 1 Commercial Heavy Duty Entry Door Lever is built tough for high-traffic areas. Its satin nickel finish adds a sleek look to any office or commercial space.
It works with most doors, left or right swing, and installs easily. The keyed entry lets you exit quickly and re-enter with ease.
This Grade 1 certified lock meets top security standards. Its ergonomic lever ensures smooth, effortless use for everyone.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This lock is perfect for busy places like offices, schools, and hospitals. It’s easy to use and very secure, making it great for high-traffic areas.
Ready to Purchase?
3. BRINKS Commercial – Single Cylinder Deadbolt Lock, Matte Black Finish – Meets ANSI Grade 1 Standards and has 3-Hour UL Fire Rating

The BRINKS Commercial Single Cylinder Deadbolt Lock is designed for strong security. It is perfect for both interior and exterior doors.
This deadbolt fits doors that are 1-3/8” to 2” thick. It has an adjustable latch for a 2-3/8″ or 2-3/4″ backset. This lock meets ANSI Grade 1 standards and has a 3-hour UL fire rating.
The deadbolt is made from corrosion-resistant steel and includes a 6-pin SC4 brass cylinder with two keys. It is easy to install on most doors and has a saw-resistant latch. Trust BRINKS for top-quality security products to keep your home safe.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This BRINKS Commercial Deadbolt Lock is perfect for anyone who wants top security. It’s great for homes or businesses needing a strong, fire-rated lock.
Ready to Purchase?
4. McAvory Cylinder Locks, Commercial Door Lock, Adams Rite Style, Heavy Duty, 2 Keys, Thumbturn, Duronotic Bronze, 1 Pack

McAvory Cylinder Locks are heavy-duty and designed for commercial doors. They fit Adams Rite and other storefront locksets perfectly.
These locks come with 2 keys, a thumbturn, and Duronotic Bronze finish. They work with deadbolts, hook locks, and deadlatches in glass doors.
| Pros | Cons |
|---|---|
|
|
Perfect For:
The McAvory Cylinder Locks are perfect for business owners who need a reliable and heavy-duty lock for their storefront doors. It’s easy to install and works great with glass doors and narrow aluminum frames.
Ready to Purchase?
5. HISAFE Storeroom Grade 1 Commercial Door Locks Heavy Duty Door Lever in Public Buildings, Non-Handed, UL 3 Hour Fire Rated, ADA Compliant, Brass Latch, 2-3/4”Backset, Satin Chrome 26D

The HISAFE Storeroom Grade 1 Commercial Door Lever is heavy-duty and secure. It’s UL fire-rated for up to 3 hours. Perfect for public buildings needing safety.
It’s self-locking for added security. The inside lever stays unlocked for emergency exits. Fits left or right-handed doors easily.
Made with zinc alloy, stainless steel, and brass. Features a satin chrome finish for a sleek look. ADA compliant and Grade 1 certified for reliability.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This HISAFE Storeroom Grade 1 Commercial Door Lock is perfect for public buildings needing heavy-duty security. It’s ideal for offices, schools, or warehouses where self-locking doors and emergency exits are essential.
Ready to Purchase?
6. Schlage Commercial CL500FLC-26D Commercial Entry Standard GR1 Clarendon Door Lock with Cylinder

The Schlage Commercial CL500FLC-26D is a durable door lock designed for commercial use. It features a non-handed clutch system lever, making it easy to install and use on any door.
This lock has a fixed backset 2-3/4″ latch, UL approved for safety. Its Grade 1 rating ensures top-quality security. Dimensions are 8.0″ L x 6.0″ W x 3.0″ H.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Schlage Commercial Door Lock is perfect for businesses needing reliable security. Its Grade 1 rating and UL-approved latch make it ideal for high-traffic areas.
Ready to Purchase?
7. MiLocks Commercial Door Lever Lock, Grade 1 Lockset Cylindrical Lever Industrial Heavy-Duty Locking Door Handles for Office (Passage, Satin Nickel)

The MiLocks Commercial Door Lever Lock is a Grade 1 certified lockset, offering top-tier security for busy spaces. It’s built tough for heavy-duty use in offices, schools, and hospitals.
This lock works with left and right swing doors and fits doors 1-3/8 to 1-3/4 inches thick. Its cylindrical retraction adds extra safety, perfect for high-traffic areas.
Keyed entry lets you exit fast, and the ergonomic lever makes it easy to use. It’s quick to install and ideal for commercial needs.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This MiLocks Commercial Door Lever Lock is perfect for busy places like offices, schools, and hospitals. It’s easy to use, works on any door, and keeps everyone safe.
Ready to Purchase?
8. SUMBIN Commercial Mortise Lock Meet Ansi Grade 1 with Cylinder and Thumbturn for Entry Door

The SUMBIN Commercial Mortise Lock is a top choice for entry doors. It features an ANSI Grade 1 rating, ensuring high security. This lock has a long life cycle of up to 1,000,000 uses.
This lock comes with a reversible latch bolt and a 1″ SUS304 deadbolt. The handle is made from durable stainless steel, providing both style and strength. It fits doors that are 45mm to 50mm thick, making it ideal for new installations.
Upgrade your door security with this reliable lock. Its sturdy design and quality materials offer peace of mind.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This commercial mortise lock is perfect for anyone needing a secure, durable lock for their entry door. It’s ideal for new doors, offering extra security with its ANSI Grade 1 rating and stainless steel design.
Ready to Purchase?
9. Master Lock 3KALF Outdoor Padlock with Key, 1 Pack

The Master Lock 3KALF is a durable outdoor padlock perfect for securing your belongings. Use it for gates, sheds, garages, and more.
Its laminated steel body and hardened steel shackle provide strength and security. It’s commercial-grade, offering superior protection against drilling and prying.
Includes one padlock and two keys. Extended shackle for flexible use. Simple and reliable for everyday security.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Master Lock is perfect for anyone who needs a strong and secure lock for their outdoor spaces. It’s great for gates, sheds, garages, and tool boxes.
Ready to Purchase?
10. Master Lock ProSeries Brass Padlock, Set Your Own Combination Lock, Commercial Grade Locks with Code for Tools, Fences, Gates, 2-1/4 inches Wide, 1177D

The Master Lock ProSeries Brass Padlock is built tough for commercial use. It’s 2-1/4 inches wide, perfect for tools, fences, and gates. The brass design ensures durability in any weather.
Set your own 4-digit code for easy access. With 10,000 combinations, it’s hard to crack. No tools needed to reset the lock.
Large dials work even with gloves. A dust cover keeps it running smoothly. This lock is reliable and secure for daily use.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This padlock is perfect for commercial and industrial users needing secure, customizable locks. Set your own 4-digit combination with 10,000 options, use ergonomic dials in any light, and enjoy lasting protection with a shackle seal and dust cover.
Ready to Purchase?
Buying Guide
Securing your business starts with the right lock. Grade 1 commercial locks offer top-notch security for peace of mind.
Factors to Consider When Buying Grade 1 Commercial Locks:
– Security Level: Grade 1 locks meet strict standards for strength and reliability, ensuring maximum protection.
– Door Type: Check if the lock fits your door thickness and swing direction (left or right).
– Ease of Installation: Look for locks with adjustable latches and simple installation processes.
– Fire Rating: Locks with UL fire ratings provide added safety in emergencies.
– Material: Choose corrosion-resistant materials like steel or brass for long-lasting durability.
– Finish: Select a finish (satin chrome, matte black, etc.) that matches your space’s style.
– Key Features: Consider keyed entry, thumbturns, or self-locking mechanisms based on your needs.
– Brand Reputation: Trusted brands like BRINKS, Schlage, and MiLocks ensure quality and reliability.
– ADA Compliance: Ensure the lock meets accessibility standards if required for public spaces.
– Price: Balance cost with features to find the best value for your budget.
Make a confident choice and protect your business with the perfect Grade 1 lock.