Lockwood 5901/90SC - Interior Narrow Plate • Round-End Brass - Lever 90 - Satin Chrome
Slim narrow plate furniture with a round-end profile for high-use corporate, commercial and public spaces. Designed for use with Lockwood Selector & Synergy mortice locks (selected functions also suit the 3540 short-backset deadbolt). Plates install back-to-back with concealed or visible fixing as required.


Key Features
- 185 × 26 × 11.5 mm narrow brass plate, round-end profile.
- Supplied to suit 32–50 mm door thickness (longer screws/spindles/tailbars available for thicker doors).
- Back-to-back installation; if the outside plate is concealed fixed, the inside must be visible fixed.
- Plates are not handed; lever handing is reversible (except inherently handed levers/functions).
Fire Rated & Compliance
- Fire: Successfully tested up to 4 hours on fire door assemblies (with Lockwood mortice locks).
- Durability: Level D8 (500,000 cycles) to AS4145.2.
- Corrosion: Brushed Satin Chrome tested to C10 (1000 hours) to AS4145.2.
- Accessibility: AS1428.1 compliant levers/turns available.
Specifications
- Series: 5800 (Exterior Round-End Narrow Plates), 5900 (Interior Round-End Narrow Plates)
- Plate Size: 185 × 26 × 11.5 mm
- Door Thickness: 32–50 mm as supplied
- Fixing: Back-to-back; concealed or visible (per side pairing)
- Application: Corporate/commercial/public doors with high use
Available Finish Options
— finishes/lead times may vary. 07 5601 1852
Call to check availability - Satin Chrome
SC - Chrome Plate
CP - Polished Brass
PB - Bright Brass Unlacquered
BU - Satin Brass
SB - Satin Brass Unlacquered
SBU - Aged Brass
AG - Architectural Bronze
AZ - Architectural Bronze Unlacquered
AU - Antique Copper
AC - Oil Rubbed Bronze
ORB
Warranty
- Mechanical: 25-year mechanical warranty (conditions apply).
- Finishes (guide): Stainless/Chrome/Anodised up to 10 years; Everbrass 25 years; PVD/VIVID 10 years; Symmetry 5 years; decorative (bronze/antique/powdercoat) typically 2 years.
Download PDF Resources
![]() | Lockwood Plate Door Handles Catalogue |
![]() | Lockwood Brass Levers |
![]() | Lockwood 25-Year Mechanical Warranty |
