Kay Otto Fisker Door Lever
Pre-drilling or pre-milling for hardware components is not recommended until all items are received and measured. Learn more
There may be slight variations that could affect the installation of your hardware as many pieces are hand finished / fabricated.
Casson is not responsible for any damages or inconveniences resulting from the improper installation of the hardware.
Optional Accessories
Description
The Kay Otto Fisker Door Lever by d line is a cast solid brass lever designed in the 1940s — one of the most sought-after heritage lever designs, with an iconic, timeless form. The high copper content in the unpainted brass develops a rich patina over time. Rigorously tested for constant commercial use. Made in Europe.
Specifications
- Door thickness: 33–59 mm (1.3–2.3")
- Rose: Round
- Bore hole: Ø 25 mm
- Certifications: EN1906, EN1634-1
- Areas of application: Commercial, Residential
European roses are smaller than standard North American models. Verify all dimensions carefully — these may not fit existing or pre-bored door holes.
Materials
Available in polished brass and satin stainless steel. X-BAC antimicrobial coating and additional finishes available upon request.
Product Downloads
Finish Overview & Samples
2025 Updated d line Finish Swatches
- AISI 316 Satin Stainless Steel
- AISI 316 Polished Stainless Steel
- PVD Satin Brass
- PVD Satin Black
- Powder Coated RAL Black 9005
Ordering Guide
d line door hardware is sold as components and built to order. Each lever, knob, escutcheon, and lock case is specified individually to your door. To prepare your quote, please confirm:
- Function — select one:
- Passage — interior doors that latch but do not lock (hallways, closets, pantries)
- Privacy — doors that lock from one side with a thumb turn and emergency release (bathrooms, bedrooms)
- Keyed Entry — exterior or secured doors operated by a key cylinder on one side and a thumb turn on the other
- Dummy — non-operating decorative lever or knob for fixed panels or inactive leaves of double doors
- Backset — 60 mm standard for euro mortise
- Door thickness — measured at the lock case
- Quantity per side — levers, knobs, and escutcheons are ordered per side of the door
- Door condition — must not be pre-bored
d line door hardware pairs natively with the d line heavy-duty euro mortise lock & latch — engineered as a single system. Privacy configurations require a d line thumb turn; keyed entry requires a CES key cylinder with matching d line escutcheons.
Contact contact@cassonhardware.com for an itemized quote.