Universal Hinge
K stands for King — the truly universal series. Any door gap ≥ 3.40 mm accepts a K hinge, sharing the modular spindle-core platform (B-type, shared with M / R). At 6 × 4.5 inch it replaces most common market sizes — ideal for retrofitting existing door frames on site.
Product Gallery
K SERIES · PRODUCT SHOWCASE
Universal Fit · Door Gap ≥ 3.40 mm
The K series fits most existing door frames — simply verify a door gap ≥ 3.40 mm on site, then replace the old hinges directly with no frame modification required.
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 · Dual-Stage Safety
Requires >3mm substrate thickness, Ø12mm drill bit and width of 3mm drill hole for use; the second anchoring stage continues holding force to reduce sudden pull-out failure.
K Series Modules
HSW · TSW · LSW · SHARED B-TYPE PIVOT PLATFORMAxis Module Reference
SHARED ACROSS D · K · M · RSelection & Warranty
SHARED ACROSS D · K · M · RTS · With Safety Pin Device
TSW integrates a mechanical brake module with a safety pin — for temporary door stopping and added protection against unauthorized entry.
LS · With Escape Safety Pin
LSW integrates an electromechanical hinge lock with an escape safety pin — in an emergency, pull down the escape safety pin and push the door open immediately.
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.
