--- product_id: 343908066 title: "Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI" brand: "yale" price: "$75.00" currency: USD in_stock: true reviews_count: 13 category: "Yale" url: https://www.desertcart.us/products/343908066-yale-yc2100-double-entry-lock-cylinder-yc2100-db-40x50-ni store_origin: US region: United States of America --- # Emergency dual-key function 10 pins, 60,000+ variations Hardened steel drill protection Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI **Brand:** yale **Price:** $75.00 **Availability:** βœ… In Stock ## Summary > πŸ”’ Elevate your door’s defense with Yale’s precision-engineered lock β€” because your home deserves the best. ## Quick Answers - **What is this?** Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI by yale - **How much does it cost?** $75.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/343908066-yale-yc2100-double-entry-lock-cylinder-yc2100-db-40x50-ni) ## Best For - yale enthusiasts ## Why This Product - Trusted yale brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Premium Key Control:** Includes 5 patented reversible keys plus a security card to prevent unauthorized duplication. - β€’ **Unmatched Security Complexity:** 10-pin, 2-axis design delivers 60,000+ unique key variations for elite protection. - β€’ **Fortified Against Forced Entry:** Hardened steel pins and anti-snap cylinder shield your door from drills and break-ins. - β€’ **Emergency Access, Zero Compromise:** Dual-key emergency function lets you unlock from either side even if a key is inside. - β€’ **Seamless Installation & Compatibility:** Nickel-plated brass cylinder fits standard doors and pairs perfectly with smart lock systems. ## Overview The Yale YC2100 Double-Entry Lock Cylinder features a patented 10-pin, 2-axis mechanism offering over 60,000 key variations for superior security. Constructed with hardened steel pins and an anti-snap design, it provides robust protection against drilling, snapping, and forced entry. Its emergency function allows unlocking from both sides even if a key is inserted inside, enhancing convenience without sacrificing safety. The lock comes with 5 reversible keys and a security card to control key duplication, all housed in a durable nickel-plated brass cylinder compatible with standard doors and smart lock integrations. ## Description From the manufacturer Yale 2100 Cylinder To make your house feel like a home, you should switch to Yale cylinder locks. We know that home is the place where the heart hangs. Protect it with the highest level of safety. Upgrade it with this patented 10 pin cylinder with brass housing that provides a high level of safety with high anti-breaking, impact and drill protection. Features 10 Pin Cylinder Key with 4 pins Maximum protection and drilling, break-up and shock protection Resistance to lock removal 5 reversible keys included and included security card Key with special safety groove for added security Available in standard, emergency function, knob and half cylinder Multiple packs available with keyed alike cylinders Maximum protection: 10-pin cylinder with anti-break protection This patented 10-pin cylinder provides the highest level of safety for your front door with drilling, breaking, and impact protection, as well as opening protection and resistance to the removal of the lock. The opening lock prevents the cylinder from being broken and gained access. Security card for added security Included are 5 patented reversible keys and a security card to ensure that rear-keys are made only by authorized Yale dealers. The keys have a special safety groove to open the 4 combination pins. Wide range of cylinders to fit your door The cylinder is available in various dimensions, designs and cylinder types, such as Standard, emergency function, knob and half cylinder to meet your safety requirements. Review: Works with Nuki Smart Locks - Good quality Yale lock, Easy and quick to install. Works great with the Nuki Smart Lock Pro (5th Generation). this was the may reason for buying this lock as it has the emergency function so the lock can operate with a key in Both ends of the lock at the same time. Not the most secure lock but a good price. Comes with plenty of keys, 5 to be exact but if you use it with a smart lock the keys will hardly ever be used, saying that they go into the lock easily. Review: Excellent value "emergency function" barrel - This seems a high quality lock with the emergency function that allows it to be opened with a key from outside, with a key inserted inside. Other similar barrels from other makers are available but only at multiples of the price paid. Key is inserted horizontally and is a little more fiddly than a traditional Yale, but this seems common to the competition. 5 keys supplied a bonus. Fitted easily. Limited barrel lengths available however. ## Features - 10 pins on 2 axes (60,000 variations) with high lock pick and D shock protection - Drill protection thanks to the pin made of hardened steel - Protection against break-in of the protruding cylinder part (anti-snap) - Emergency and danger function: Allows you to open a door with an already inserted key on the inside - 5 security keys and a card ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V7H9SHC | | Best Sellers Rank | 101,800 in DIY & Tools ( See Top 100 in DIY & Tools ) 141 in Lock Cylinders | | Brand | Yale | | Colour | Nickel-plated | | Control Method | Touch | | Controller Type | Hand Control | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 815 Reviews | | Finish | Nickel plated | | Global Trade Identification Number | 05052847092965 | | Included Components | Key | | Item Dimensions | 9 x 1.5 x 3.3 centimetres | | Item Weight | 360 Grams | | Item dimensions L x W x H | 9 x 1.5 x 3.3 centimetres | | Lock Type | Pin Tumbler | | Lock type | Pin Tumbler | | Manufacturer | Yale | | Material | Brass | | Model Name | YC2100 DB 40X50 NI | | Model Number | 10-2172-4050-00-2201 | | Number of Pieces | 1 | | Part Number | YC2100 DB 40X50 NI | | Recommended Uses For Product | For securing doors in homes or offices | | Recommended uses for product | For securing doors in homes or offices | | Shape | Round | | Smart Home Compatibility | Not Smart Home Compatible | | Special Features | Anti-puncture protection, anti snap, emergency function | | Special feature | Anti-puncture protection, anti snap, emergency function | | Style | Doppelzylinder | | Unit Count | 1.0 count | ## Product Details - **Brand:** Yale - **Item dimensions L x W x H:** 9 x 1.5 x 3.3 centimetres - **Lock type:** Pin Tumbler - **Material:** Brass - **Special feature:** Key Unlock ## Images ![Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Image 1](https://m.media-amazon.com/images/I/61I9UcaKDEL.jpg) ![Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Image 2](https://m.media-amazon.com/images/I/71Bn+q++0lL.jpg) ![Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Image 3](https://m.media-amazon.com/images/I/71Ld3ypyBDL.jpg) ![Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Image 4](https://m.media-amazon.com/images/I/71mSQ3iNJuL.jpg) ![Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Image 5](https://m.media-amazon.com/images/I/713u0GGsLQL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: One amazon customer says you can order with extra keys. it comes with 5 keys. we need a about 8 keys in total. can't see how to order extra keys ?** A: Good morning, The set is individual (unique) we do not have additional keys. Additional keys can be made by presenting a security card. Locksmith services are the services you should go to. Kind regards, AMW Europe **Q: If my lock is 7cm over all do I need 35 Γ— 35** A: Good morning, Please unscrew the lock, measure and order exactly the same size. Best regards, AMW Europe **Q: Does this have a diamond rating ? Is it anti snap cylinder?** A: It is anti-snap guarded. Not sure it had the star rating on the barrel though it just says β€œYale”. **Q: Is it possible to order extra keys at time of purchase?** A: Yes, you need the code on the card you get with the lock. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with Nuki Smart Locks *by J***H on 9 July 2025* Good quality Yale lock, Easy and quick to install. Works great with the Nuki Smart Lock Pro (5th Generation). this was the may reason for buying this lock as it has the emergency function so the lock can operate with a key in Both ends of the lock at the same time. Not the most secure lock but a good price. Comes with plenty of keys, 5 to be exact but if you use it with a smart lock the keys will hardly ever be used, saying that they go into the lock easily. ### ⭐⭐⭐⭐⭐ Excellent value "emergency function" barrel *by F***B on 14 February 2025* This seems a high quality lock with the emergency function that allows it to be opened with a key from outside, with a key inserted inside. Other similar barrels from other makers are available but only at multiples of the price paid. Key is inserted horizontally and is a little more fiddly than a traditional Yale, but this seems common to the competition. 5 keys supplied a bonus. Fitted easily. Limited barrel lengths available however. ### ⭐⭐⭐⭐ Nice lock but *by C***5 on 28 September 2024* Keys are a bit figity to get in to the lock but love the lock due to having being able to open the door from the outside whilst a key is in the lock on the inside ## Frequently Bought Together - Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI - Yale 10-2172-3040-00-2201 YC2100 DB 30X40 NI Removable Lock Cylinder 30 x 40 mm, 10 Pins-External, Interior Door, Entrance Door-YC2100-5 Reversible Keys, Nickel-Plated - SwitchBot WiFi Smart Lock Pro with Touchscreen Keypad, Fingerprint Door Lock, Smart Door Lock, Fits Your Existing Euro Profile Cylinder, IP65 Weatherproof, Supports Matter, Alexa, Google, IFTTT --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/343908066-yale-yc2100-double-entry-lock-cylinder-yc2100-db-40x50-ni](https://www.desertcart.us/products/343908066-yale-yc2100-double-entry-lock-cylinder-yc2100-db-40x50-ni) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-12*