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Grade 1 Cylindrical Locks

We offer grade 1 cylindrical locks for virtually any application, from home to office, as the heavy-duty ultra durable choice for added security and protection. These locks are rugged and built to withstand constant use. Whatever your application may be, whether at home, office, university, church, or hospital, we offer the top brands, made with high quality materials—and we also offer replacement parts if you’re looking for bolster or refurbish your current application. Browse the selection below to find everything you need for your door lock cylinder parts and sets today!

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  1. Sargent 28-10G17-LB-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G17-LB-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G17-LB is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $336.05

  2. Sargent 28-10G17-LJ-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G17-LJ-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G17-LJ-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $333.10

  3. Sargent 28-10G17-LL Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G17-LL Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G17-LL is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $336.05

  4. Sargent 28-10G17-LP-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G17-LP-26D Utility/Asylum/Institutional 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G17-LP is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $336.05

  5. Sargent 28-10G38-LB-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G38-LB-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G38-LB-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $336.05

  6. Sargent 28-10G38-LJ-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G38-LJ-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G38-LJ-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $344.85

  7. Sargent 28-10G38-LL-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G38-LL-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G38-LL-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $324.60

  8. Sargent 28-10G38-LP-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G38-LP-26D Classroom Security 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G38-LP-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $336.05

  9. Sargent 28-10G50-LB-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G50-LB-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G50-LB-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $320.65

  10. Sargent 28-10G50-LL-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G50-LL-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G50-LL-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $320.65

  11. Sargent 28-10G50-LP-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G50-LP-26D Hotel/Dormitory Or Apartment 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G50-LP-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $320.65

  12. Sargent 28-10G54-LL-26D Dormitory 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-10G54-LL-26D Dormitory 10 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The Sargent 28-10G54-LL-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $320.65

  13. Sargent 28-11G16-LL-26D Classroom Security/Apartment 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    Sargent 28-11G16-LL-26D Classroom Security/Apartment 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    The SARGENT 28-11G16-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $347.05

  14. Sargent 28-11G17-LL-26D Utility/Asylum 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    Sargent 28-11G17-LL-26D Utility/Asylum 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    The SARGENT 28-11G17-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $347.05

  15. Sargent 28-11G30-LL-26D Communicating 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    Sargent 28-11G30-LL-26D Communicating 11 Line Cylindrical Lever Lock w/ Conventional Cylinders

    The SARGENT 28-11G30-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $347.05

  16. Sargent 28-11G38-LB Classroom Security 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-11G38-LB Classroom Security 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The SARGENT 28-11G38-LB sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $322.48

  17. Sargent 28-11G38-LL Classroom Security 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-11G38-LL Classroom Security 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The SARGENT 28-11G38-LL sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $322.48

  18. Sargent 28-11G50-LL-26D Hotel/Motel 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-11G50-LL-26D Hotel/Motel 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The SARGENT 28-11G50-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $331.65

  19. Sargent 28-11G54-LL-26D Dormitory 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    Sargent 28-11G54-LL-26D Dormitory 11 Line Cylindrical Lever Lock w/ Conventional Cylinder

    The SARGENT 28-11G54-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $331.65

  20. Sargent 28-30-11G38-LL-26D Classroom Security 11 Line Cylindrical Lever Lock Accepts Schlage Cylinder (Less Cylinder)

    Sargent 28-30-11G38-LL-26D Classroom Security 11 Line Cylindrical Lever Lock Accepts Schlage Cylinder (Less Cylinder)

    The SARGENT 28-30-11G38-LL sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $322.48

  21. Sargent 28-63-10G04-LB-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-10G04-LB-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The Sargent 28-63-10G04-LB-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $305.48

  22. Sargent 28-63-10G04-LL-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-10G04-LL-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The Sargent 28-63-10G04-LL-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $305.48

  23. Sargent 28-63-10G04-LP-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-10G04-LP-26D Storeroom/Closet 10 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The Sargent 28-63-10G04-LP-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $305.48

  24. Sargent 28-63-10G05-LB-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    Sargent 28-63-10G05-LB-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    The Sargent 28-63-10G05-LB-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $316.25

  25. Sargent 28-63-10G05-LL-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    Sargent 28-63-10G05-LL-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    The Sargent 28-63-10G05-LL-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $305.48

  26. Sargent 28-63-10G05-LP-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    Sargent 28-63-10G05-LP-26D Entrance/Office 10 Line Cylindrical Lever Lock w/ Large Format Removable Core

    The Sargent 28-63-10G05-LP-26D is a heavy duty cylindrical key-in-lever handle lockset exceeds by five times the ANSI 156.2 Series 4000 Grade 1 standards. At over 4 million cycles, the 10 Line beats the competitor by 30%. As for abusive force, this lock endures more than two times the standard without allowing entry. The 10 line trim is designed to conform to national and state fire and handicapped requirements. Learn More
    $316.25

  27. Sargent 28-63-11G04-LL-26D Storeroom/Closet 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-11G04-LL-26D Storeroom/Closet 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The SARGENT 28-63-11G04-LL sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $316.63

  28. Sargent 28-63-11G05-LL-26D Entrance/Office 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-11G05-LL-26D Entrance/Office 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The SARGENT 28-63-11G05-LL sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $316.63

  29. Sargent 28-63-11G37-LL-26D Classroom 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    Sargent 28-63-11G37-LL-26D Classroom 11 Line Cylindrical Lever Lock w/ Large Format Interchangeable Core

    The SARGENT 28-63-11G37-LL-26D sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $316.63

  30. Sargent 28-70-11G38-LL-26D Classroom Security 11 Line Cylindrical Lever Lock Prep For Small Format Interchangeable Core (Less Core)

    Sargent 28-70-11G38-LL-26D Classroom Security 11 Line Cylindrical Lever Lock Prep For Small Format Interchangeable Core (Less Core)

    The SARGENT 28-70-11G38-LL sets a higher standard for Grade 1 bored-in locks. The unique T-Zone construction provides unequalled strength and durability for the most demanding applications such as schools and hospitals. This is accomplished by true interlocking between the lockbody and the latch far exceeding the 156.2 Series 4000 Grade 1 standards like no other lock can. Learn More
    $322.48

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Door Lock Cylinder

Grade 1 cylindrical locks are the strongest of their kind, providing you with a convenient latching system, most common on residential doors, with the strength to match the required integrity of a high-security commercial facility. These are a great accompaniment to a secure deadbolt, or even work well as an intra-facility access device between rooms with different clearances. We are confident that whatever door lock cylinder you need, you’ll find it here today on Buy Access.

Our goal, in keeping one of the largest access system inventories around, is that our customers can find exactly what they need for any application. We combine the best of both selection and top name brands so that you have everything you need from spare parts to full locksets, and don’t need to waste time searching all over the Internet to find the products you need.

Additionally, we want to make it even easier to get what you need for your lock system. So we’ve included free shipping on all orders over $200, and promise that if you can’t find what you’re looking for on our site, you can call one of our customer service representatives and we’ll help you find exactly what you need.

We know that in situations where you need to replace a lock, time is of the essence. So we encourage you to take advantage of our search tool, and find the exact cylindrical locks and models that you need. Rather than trying to replace the entire set, if just one small part is broken, simply find that missing part and install it into your existing application.

Take for example, our various Arrow locks. We have square corner, classroom-ready, knob, and several other locks, which are all viable for different commercial and non-commercial applications. Because they are backed by the ANSI grade 1 ranking, you can trust that they are built tough, and ready to handle any situation.

So whatever your needs are, we encourage you to browse our entire selection and find exactly what you need. Thanks again for choosing Buy Access, we’re glad to be able to help you keep your systems safe today!