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- Grade 1 · 2 · 3 per BHMA
- Cylindrical, mortise, interconnected, tubular
- Office, classroom, storeroom, privacy…
- Free-wheeling, vandal-resistant levers
- Up to 3 h fire-rated listings
- ADA-compliant lever trim
Choose by grade and duty
| Grade | Type | Duty | Typical use |
|---|---|---|---|
| Grade 1 | Cylindrical | Maximum duty | Schools, hospitals, industrial and public buildings |
| Grade 1 | Mortise | Maximum duty | Main entrances, high-security and high-traffic doors |
| Grade 2 | Cylindrical – heavy duty plus | Heavy duty | Offices, retail, multi-family |
| Grade 2 | Cylindrical | Heavy duty | Commercial interior and exterior doors |
| Grade 2 | Interconnected | Heavy duty | Apartments, dormitories, hotels – lever opens latch and deadbolt |
| Grade 2 | Tubular (keyed or electronic) | Commercial duty | Light commercial, modular buildings |
| Grade 3 | Tubular | Light commercial | Interior and residential-style doors |
Grade 1 cylindrical locks are cycle-tested to 800,000 operations; free-wheeling clutches let the outside lever turn without stressing the mechanism when locked, so forced turning cannot break the lock.
Functions
Every series offers the standard functions – passage, privacy, office/entry, classroom, storeroom, store door, communicating and more – so one family of locks covers the whole building and keys to one master key system.
Fit
Locks fit the standard ANSI 161 cylindrical and 86 mortise preparations of WS hollow metal doors, 2¾ in backset, 1⅜ – 2 in doors, with ASA strikes.
Tiêu chuẩn và yêu cầu theo thị trường
Các quy chuẩn mà World Steel áp dụng để thiết kế, gia công và lập hồ sơ cho sản phẩm này – cùng các yêu cầu chính về hình học và tải trọng tại từng thị trường.
Hoa Kỳ
- ANSI/BHMA A156.2Bored and preassembled locks and latches
- ANSI/BHMA A156.13Mortise locks and latches
- NFPA 80 · UL 10CHardware on fire doors
- ICC A117.1 / ADAAccessible operating hardware
- Grade 1 cycle test
- 800,000 cycles (cylindrical)
Úc / NZ
- AS 4145.2Locksets – mechanical locking devices
- AS 1905.1Hardware on fire-resistant doorsets
- AS 1428.1Accessible door hardware
Châu Âu
- EN 12209Mechanically operated locks and plates
- EN 1906Lever handles and knobs
Nội dung chỉ mang tính tham khảo – chỉ dẫn kỹ thuật của dự án, phiên bản quy chuẩn được áp dụng và cơ quan có thẩm quyền là căn cứ quyết định.
Hoàn thiện bề mặt
| Hoàn thiện bề mặt | Tiêu chuẩn / ghi chú |
|---|---|
| Finishes | US26D satin chrome, US32D satin stainless, US10B oil-rubbed bronze, AL aluminium (by series) |
| Keying | Keyed different, keyed alike, master and grand master, construction master; 6-pin C-keyway, popular keyways and small-format interchangeable core (SFIC) |
Câu hỏi thường gặp
Cylindrical or mortise?
Cylindrical locks install in a simple bored preparation and suit most doors. Mortise locks sit in a pocket in the door edge, are stronger and offer more functions – the choice for main entrances and maximum-duty doors.
