Hettich HBS 31 FBL Bathroom Lock – DIN Left/Right, 55 mm Backset, SS Finish
Overview
The Hettich HBS 31 FBL is a bathroom lock designed for single leaf steel or wooden doors. It falls under Hettich's Door Locking Solution range, specifically the Special Locks > Security Lock category. The lock is built for DIN left/right door configurations, meaning the same unit works on either handing without needing a separate left- or right-hand version.
What It Does
This lock provides a WC-78 (PZ 78W) bathroom locking mechanism with a closed lock case and 3-fold fastening for added durability. It is rated for doors with high-frequency use, making it suitable for both residential and commercial bathroom applications.
Who It Helps
- Homeowners replacing or upgrading bathroom door locks
- Contractors and carpenters installing steel or wooden bathroom doors
- Facility managers specifying durable, high-frequency-use locks for commercial washrooms
Key Capabilities
- Lock type: PZ 78W (W = handle/knob execution), WC-78
- Backset: 55 mm
- Centre to centre (CTC): 78 mm
- Face plate: Stainless steel, 24 mm width
- Hub size: 8 mm
- Lock case: Zinc-plated, closed case with 3-fold fastening
- Handing: DIN Left/Right – same version fits both
- Rated for: High-frequency door use
- Warranty: 5 years
Product Specifications
| Specification | Detail |
|---|---|
| SKU | 9228142 |
| Brand | Hettich |
| Category | Door Locking Solution > Special Locks > Security Lock |
| Lock Type | Bathroom Lock |
| Back Set | 55 mm |
| Centre to Centre | 78 mm |
| Face Plate Material | Stainless Steel |
| Lock Case Material | Zinc Plated |
| Finish Type | SS (Stainless Steel) |
| Door Type | Steel/Wooden |
| Fire Rated | No |
| Applicable For | Single Leaf Door |
| Model | Lock Body |
| Warranty | 5 Years |
Pricing and Availability
| Detail | Value |
|---|---|
| Currency | INR |
Buyer Questions This Page Should Answer
Is this lock suitable for both left and right opening doors?
Yes. The DIN Left/Right design means a single unit works for both left-hand and right-hand door configurations without needing a separate variant.
What door types is this lock compatible with?
It is applicable for single leaf steel or wooden doors.
What backset and centre-to-centre spacing does it use?
The backset is 55 mm and the centre-to-centre (CTC) measurement is 78 mm.
Is the lock fire rated?
No, this lock is not fire rated.
What is the finish and material?
The face plate is stainless steel with a 24 mm width, and the lock case is zinc-plated. The overall finish type is SS (stainless steel).
How long is the warranty?
The product comes with a 5-year warranty.
Is it currently available to purchase?
Proof or Trust Signals
- Backed by Hettich, an established brand in door and furniture hardware
- 5-year warranty included
- Rated for high-frequency door use, indicating durability for demanding installations
Resources or Next Steps
Current product facts
Last checked by Readable: 2026-09-28T18:46:48.488Z
- Product: Hettich HBS 31 FBL: Bathroom Lock DIN Left/Right CTC 78 & Backset 55 SS Finish
- Brand: Hettich
- Category: Door Locking Solution > Special Locks > Security Lock
- SKU: 9228142
- Price: ₹1,964 (MRP ₹2,455)
- Availability: OutOfStock