Zoned In
Your Summer Assignment: Enter the Zone
School’s out! Summer is the perfect time to take advantage of the break in classes and turn your school facilities into zones of safety and security. ASSA ABLOY and its trusted partners make this task easier with new products that bring unmatched levels of protection to your doorways. T-Zone locks from CORBIN RUSSWIN and SARGENT bring an unprecedented degree of toughness to mechanical locksets, while the NORTON SafeZone door holder/closer keeps a watchful eye over vulnerable pedestrians. Together, T-Zone and SafeZone create a defensive zone around your doorways.
SARGENT 11-Line™

The SARGENT 11 Line 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.
T-Zone features include:
Maximum Strength & Durability
- Independent Testing proves: Exceeds ANSI/ BHMA A156.2 Grade 1 standard for cycle testing. Over 10 MILLION cycles!
- Withstands 3-1/2 TIMES ANSI/ BHMA A156.2 Grade 1 torque force on a locked lever. Over 3000 in/lbs!
Maximum Convenience
- Fits 161 door preps.
- 19 functions. Many functions are easily field changeable.
Learn more about the SARGENT T-Zone advantage.
CORBIN RUSSWIN CL3100™
The CL3100 Series is the strongest, most dependable Grade 1 lock on the market. With T-Zone construction, the CL3100 Series will outperform all competitor locks with its impressive reliability and durability. Direct linkage with fixed alignment between the hub and the latchbolt is the best construction for quietly and effectively operating the latchbolt. For this reason, Corbin Russwin interlocks the aligning and latch tubes, which form a rugged torque resistant “T” in the critical twist area. Available in all standard architectural finishes, the CL3100 series subtly complements any high-use commercial, industrial and institutional application.
Strength, durability and convenience features include:
- Tested to over 15 million cycles, exceeding BHMA Grade 1 standards by 15 times.
- Fits most standard 161 door preps.
- Several security key systems available
- 18 functions. Many of which are easily field changeable
Discover all the features and benefits offered by the CL3100!
SafeZone
At last, a product that creates a “zone of safety” in the door openings at your facility! NORTON SafeZone is a revolutionary closer/holder that senses movement in the door opening and stops the door from closing. A physically disabled person in a wheelchair; an elderly person moving slowly; and a child who stops to pick up a toy all are safe to move through the door opening at their own speed. SafeZone also provides the full feature offering you’ve come to expect on Norton door closers, and the quality you need. Learn More