Spring-loaded and strong. The 28 Series custodial lock provides tamper-resistant lock up. A slot in the housing requires a special key to operate the lock. Rotating the key 90 degrees locks or unlocks the sash. One end of the key is removable in both the locked and unlocked positions; the other end—only in the locked position allows the key to act as a handle when operating the vent.
| Part # | Description | Box Quantity | Color Name | Material | Series | Window Material |
|---|---|---|---|---|---|---|
| 2115360 | HANDLE, CUSTODIAL LOCK | 50 | STAINLESS STEEL | 28 SERIES | ||
| 2115373 | GASKET, CUSTODIAL LOCK | 1000 | RUBBER/CORK | 28 SERIES | VINYL, ALUMINUM | |
| 2119577 | CUSTODIAL LK REAR MT 1 3/8 | 50 | Silver Grey | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119578 | CUSTODIAL LK, REAR MT 1 3/8 | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119579 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Faux Nickle | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119580 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Silver Metallic | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119581 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Black | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119582 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Satin Nickel | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119583 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Chestnut Bronze | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119584 | CUSTODIAL LK REAR MT 1 1/2 | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119585 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Black | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119586 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Satin Nickel | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119587 | CUSTODIAL LK REAR MT 1 1/2 | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119588 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Silver Metallic | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119589 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Chestnut Bronze | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119590 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Silver Metallic | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119591 | CUSTODIAL LK REAR MT 1 1/2 | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119592 | CUSTODIAL LK FACE MT | 50 | Silver Metallic | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119593 | CUSTODIAL LK FACE MT | 50 | Chestnut Bronze | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119594 | CUSTODIAL LK FACE MT | 50 | Bright White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119595 | CUSTODIAL LK FACE MT | 50 | Aluminum | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119596 | CUSTODIAL LK FACE MT | 50 | Black | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119597 | CUSTODIAL LK FACE MT | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119598 | CUSTODIAL LK FACE MT | 50 | Silver Metallic | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119599 | CUSTODIAL LK FACE MT | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119600 | CUSTODIAL LK FACE MT | 50 | Black | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 2119601 | CUSTODIAL LK FACE MT | 50 | White | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |
| 28.24.23.101 | CUSTODIAL LK REAR MT 1 1/2 | 50 | Chestnut Bronze | ZINC | 28 SERIES | ALUMINUM, PVC, COMPOSITE |