Hettich Cylindrical Knob Sets (HCK 01 Series)

Overview

Hettich's HCK 01 cylindrical knob set range is a line of stainless steel door knob locks designed for different door types across a home: main doors, room doors, balcony doors, and washroom doors. Each variant has a 65 mm diameter body and a stainless steel finish, with the locking mechanism (key, dead knob, or emergency release) chosen based on the door's function.

What It Does

A cylindrical knob set combines a door knob with a built-in locking cylinder. Depending on the variant, one side has a knob and the other side has either:

• A key lock (for doors that need secure locking from outside)
• A dead knob (fixed, non-locking knob for balcony doors)
• An emergency release slot with no key (for washroom doors, allowing quick opening from outside in an emergency)

All variants share a stainless steel construction intended for durability and a consistent modern look across a property's doors.

Who It Helps

This range is relevant to:

• Homeowners fitting out or renovating room, balcony, and washroom doors
• Builders and contractors specifying consistent door hardware across a project
• Architects and interior designers matching hardware finish and function to door type

Product Range

All listed models are 65 mm diameter and finished in stainless steel.

Buyer Questions This Page Should Answer

What is a cylindrical knob set used for?

It is a door hardware unit that combines a knob with a locking cylinder, fitted to interior doors such as bedrooms, balconies, and washrooms, as well as main doors.

Which knob set is right for a washroom door?

The HCK 01 AB WC and HCK 01 SS WC models are built for washrooms: a knob on the inside and an emergency release slot (no key) on the outside, so the door can be opened from outside in an emergency without a key.

Which knob set is right for a balcony door?

The HCK 01 SS BD has a knob on one side and a fixed dead knob on the other, suited to balcony doors that don't need a key-operated lock.

Which knob set is right for a bedroom or room door?

The HCK 01 SS includes a key lock on one side, a knob on the other, and comes with 3 keys, matching typical room door security needs.

What material are these knob sets made from?

All variants in this range are stainless steel, chosen for durability and a modern finish.

Do these come with keys?

Only the key-lock variants include keys; the HCK 01 SS room door model includes 3 keys. The washroom and balcony variants do not use a key.

Comparison Context

Within the HCK 01 series, the main differentiator is the non-knob side of the mechanism, matched to the door's function:

• Key lock + knob → rooms needing secured entry
• Knob + dead knob → balcony doors needing no external lock
• Knob + emergency release slot → washrooms needing quick emergency access without a key

Resources

• Cylindrical Knob Set category page - Hettich India