---
product_id: 36008978
title: "Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel)"
brand: "mul-t-lock"
price: "843 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Mul T Lock"
url: https://www.desertcart.pl/products/36008978-cronus-high-security-grade-2-single-cylinder-dead-bolt-w
store_origin: PL
region: Poland
---

# Grade 2 High Security 3 Dimple Keys + Duplicate Card Adjustable Backset 2-3/8" or 2-3/4" Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel)

**Brand:** mul-t-lock
**Price:** 843 zł
**Availability:** ✅ In Stock

## Summary

> 🔒 Elevate your security game with Mul-T-Lock Cronus — where strength meets smart design.

## Quick Answers

- **What is this?** Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel) by mul-t-lock
- **How much does it cost?** 843 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/36008978-cronus-high-security-grade-2-single-cylinder-dead-bolt-w)

## Best For

- mul-t-lock enthusiasts

## Why This Product

- Trusted mul-t-lock brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Adjustable Fit:** Seamlessly adapts to door thicknesses from 1-3/8" to 1-3/4" with dual backset options.
- • **Unmatched Security Grade 2:** Engineered to exceed ANSI standards for commercial & residential peace of mind.
- • **Keyed Alike & Master Key Ready:** Simplify access control with customizable keying options for your entire property.
- • **Drill & Pick Resistant Cylinder:** Hardened steel pins and solid core rosette thwart forced entry attempts.
- • **Sleek Stainless Steel Durability:** Modern finish resists corrosion while complementing any metal or wood door aesthetic.

## Overview

The Mul-T-Lock Cronus is a Grade 2 high-security deadbolt featuring a drill- and pick-resistant cylinder with hardened steel pins, designed for commercial and residential metal or wood doors. It offers adjustable backset options (2-3/8" or 2-3/4") to fit standard door thicknesses and comes with 3 dimple keys plus a duplicate card for easy key copying. With ANSI certification, UL fire rating, and the ability to be keyed alike or master keyed, this stainless steel lock combines robust protection with versatile installation and access control.

## Description

Mul-T-Lock Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel) - desertcart.com

Review: Better than most homeowner grade dead bolts - Well built. Key has dimples in the side instead of teeth. I would say it’s more secure than homeowner grade locks. Key is big with a plastic head so it’s easier to find in the dark
Review: High quality lock. - High quality lock. Not difficult to install however if you're replacing an old dead bolt it's very possible that the hole cut in the door that the lock is mounted in is not in the proper position for this lock. Less expensive or old dead bolts are a little too close to door jam. That what happened to me. Still, this is a high quality item that I am keeping. I'll figure it out.

## Features

- Economical and cost effective when high security is needed.
- Fits doors from 1-3/8" inch(35mm) to 1-3/4" inch (45mm).
- 3 Mul-T-Lock junior keys ( 008 Keyway) with one duplicate card To Make Duplicates key copy's included.
- Drill and Pick proof High Security Mul-T-Lock cylinder With steel hardened pin with solid core steel rosette.
- Can be Keyed Alike or Master a keyed - UL Fire rated, ANSI Grade2- Mul-T-Lock is a ASSA ABLOY Group Brand.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N1EVVQV |
| Additional Features | Key Lock |
| Best Sellers Rank | #162,617 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #550 in Deadbolts |
| Brand Name | Mul-T-Lock |
| Color | Stainless Steel |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 4.6 out of 5 stars (292) |
| Finish Types | Us3 |
| Item Dimensions | 4 x 3 x 4 inches |
| Item Weight | 0.01 Ounces |
| Lock Type | Key Lock |
| Manufacturer | Mul-T-Lock |
| Material Type | Alloy Steel, Metal, Stainless Steel |
| Model Number | 81ff8307-f289-4c93-b302-be9b9e8a00c9 |
| Recommended Uses For Product | Security |
| Shape | Round |
| Style Name | Modern |
| UPC | 700256863694 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Mul-T-Lock
- **Item dimensions L x W x H:** 4 x 3 x 4 inches
- **Lock Type:** Key Lock
- **Material:** Alloy Steel, Metal, Stainless Steel
- **Special Feature:** Key Lock

## Images

![Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel) - Image 1](https://m.media-amazon.com/images/I/51IArJpfZjL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Why is this (junior cronus) so much cheaper than the interactive+ cronus?**
A: Junior is one step below “high security”. It doesn’t provide drill resistance nor does it really prevent unauthorized key duplication. 
If you’re going for budget - Junior is better than any standard deadbolt. If you want good security I recommend to go one step up to Cronus Interactive+
Mul-T-Lock Interactive+ Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial And Residential Metal Or Wood Doors (Stainless Steel) https://www.amazon.com/dp/B07D7HSZDL/ref=cm_sw_r_cp_api_9elVBb3AHBHTR

**Q: Do you have this in a double cylinder version? Keyed on both sides**
A: This is one step up - the INTERACTIVE+ version:
MUL-T-LOCK Double Cylinder Cronus DEADBOLT Interactive+ (Stainless Steel) https://www.amazon.com/dp/B07HFKFFY2/ref=cm_sw_r_cp_api_glt_fabc_Y8ZX0GFQ2MABN7K51SK1

**Q: Where can i find a locksmith familiar with mul-t-lock in the greater wilmington nc area?  no luck with corporate in brooklyn.**
A: It’s a pretty simple lock to install you might have to drill a deeper opening in your door. 
As I’ve installed this lock myself with a cordless drill and wood drill bit...

**Q: Is the junior cronus really bump proof and pick proof? and is the key control really not secure? i ask because i have a very clever nut stalker**
A: I am not sure how 'bump proof' this lock is, but the key is unique (like the old Lexus car keys that are smooth on the outside and ridges cut on the inside).  Blank keys are not sold at Home Depot, so you would need to go to a specialized locksmith to buy a compatible blank to test if it is bump proof.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than most homeowner grade dead bolts
*by M***N on January 7, 2026*

Well built. Key has dimples in the side instead of teeth. I would say it’s more secure than homeowner grade locks. Key is big with a plastic head so it’s easier to find in the dark

### ⭐⭐⭐⭐⭐ High quality lock.
*by R***R on January 9, 2026*

High quality lock. Not difficult to install however if you're replacing an old dead bolt it's very possible that the hole cut in the door that the lock is mounted in is not in the proper position for this lock. Less expensive or old dead bolts are a little too close to door jam. That what happened to me. Still, this is a high quality item that I am keeping. I'll figure it out.

### ⭐⭐⭐⭐⭐ Easy installation
*by S***R on February 16, 2026*

Quality lock!

## Frequently Bought Together

- Mul-T-Lock Cronus High Security Grade 2 Single Cylinder Dead-Bolt w/Thumb Turn 2-3/8 or 2-3/4 Adjustable Backset for Commercial and Residential Metal Or Wood Doors (Stainless Steel)
- Prime-Line U 10827 Door Reinforcement Lock – Add Extra, High Security to your Home and Prevent Unauthorized Entry – 3 In. Stop, Aluminum Construction, Satin Nickel (Single Pack)
- Prime-Line U 10385 Door Strike, for Use with 5-1/2 In. and 6 In. Hole Spacing On Dead Latch and Deadbolt, Steel, Satin Nickel (Single Pack)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-27*