Mortise Hinge
The M series complies with U.S. national standard ANSI A156.17, with interlocked barrel leaves — the standard choice for spec-driven U.S. commercial projects. K / M / R share the modular spindle-core platform (B-type), with upper and lower modules linked via a square-section spindle.
Product Gallery
M SERIES · MODULE LINEUP · MDEA · PRODUCT SHOWCASEANSI A156.17 · U.S. Market Spec
The M series Mortise leaf uses an interlocked barrel structure compliant with U.S. ANSI A156.17 — ready for direct spec-compliant procurement in U.S. commercial projects.
12-Color Ribbon (W Optional)
W hidden wiring is optional: UL-10362 Teflon 250°C 28AWG × 12F 12-color flat cable (colors per ASSA ABLOY U.S. market standard), or UL-1569 PVC 105°C AWG26.
MDEA Anchor · Fast Installation
With MDEA dual-expansion anchoring, one 5 mm hex wrench completes installation and stored-torque setup — saving time and cost with no modification of the existing door frame.
M Series Modules
HSW · TSW · LSW · ANSI A156.17 · B-TYPE PIVOTAxis Module Reference
SHARED ACROSS D · K · M · RSelection & Warranty
SHARED ACROSS D · K · M · RTS / LS Safety Functions from the DM Catalog
The DM catalog focuses on HSW, TSW and LSW. Each model includes S stored torque and W concealed wiring; TSW adds the safety pin stop for temporary hold and access control, while LSW adds an escape safety pin that can be pulled down for immediate emergency push-open.
TS Pure Mechanical · Near-Lifetime Warranty
The TS pure-mechanical structure is extremely long-lived and virtually indestructible — effectively a near-lifetime warranty. Waterson supporters who cover round-trip shipping may exchange a unit anytime.