--- product_id: 275948153 title: "Prime-Line E 2121 Mortise Lock - Adjustable, Spring-Loaded Hook Latch Projection for Sliding Patio Doors Constructed of Wood, Aluminum and Vinyl, 3-11/16”, 45 Degree Keyway, Round Face (Single Pack)" brand: "prime-line" price: "NZ$67" currency: NZD in_stock: false reviews_count: 5 category: "Prime Line" url: https://www.desertcart.nz/products/275948153-prime-line-e-2121-mortise-lock-adjustable-spring-loaded-hook store_origin: NZ region: New Zealand --- # 45Β° angled keyway for secure locking Adjustable spring-loaded hook latch Quick, easy installation with 6-32 tapped threads Prime-Line E 2121 Mortise Lock - Adjustable, Spring-Loaded Hook Latch Projection for Sliding Patio Doors Constructed of Wood, Aluminum and Vinyl, 3-11/16”, 45 Degree Keyway, Round Face (Single Pack) **Brand:** prime-line **Price:** NZ$67 **Availability:** ❌ Out of Stock ## Summary > πŸ” Upgrade your sliding door security with precision and style! ## Quick Answers - **What is this?** Prime-Line E 2121 Mortise Lock - Adjustable, Spring-Loaded Hook Latch Projection for Sliding Patio Doors Constructed of Wood, Aluminum and Vinyl, 3-11/16”, 45 Degree Keyway, Round Face (Single Pack) by prime-line - **How much does it cost?** NZ$67 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/275948153-prime-line-e-2121-mortise-lock-adjustable-spring-loaded-hook) ## Best For - prime-line enthusiasts ## Why This Product - Trusted prime-line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Secure & Sleek Locking:** 45-degree angled keyway offers enhanced security with a modern round face design - β€’ **Versatile Compatibility:** Works flawlessly on wood, aluminum, and vinyl sliding patio doors plus W&F handles - β€’ **DIY Friendly Installation:** Simple mounting with tapped threads and helpful how-to video for stress-free setup - β€’ **Precision Fit, Zero Hassle:** Mounting hole centers at 3-11/16” ensure seamless replacement without door changes - β€’ **Durable Build for Daily Use:** Crafted from aluminum zinc alloy steel for long-lasting strength and corrosion resistance ## Overview The Prime-Line E 2121 Mortise Lock is a robust, adjustable locking solution designed specifically for sliding patio doors made of wood, aluminum, and vinyl. Featuring a spring-loaded hook latch and a 45-degree angled keyway, it offers enhanced security and a sleek, modern look. With precise mounting hole centers (3-11/16”) and compatibility with W&F handles, this lock is an easy, cost-effective replacement that avoids the need to change entire doors. Constructed from durable aluminum zinc alloy steel, it ensures long-lasting performance and quick installation supported by detailed manufacturer guidance. ## Description When your sliding door mortise lock is broken or old, don’t replace the door entirely, just get a new mortise lock! This Prime-Line E 2121 Mortise Lock has an adjustable, spring-loaded hook latch projection for surface-mounted sliding patio doors constructed of wood, aluminum and vinyl with handle sets with 45-degree angled keyway positions when in the locked position. It also fits doors using W&F manufactured handles. The mounting hole centers of this lock measures 3-11/16 inch from center to center, and the rear housing corners are square. Selection Tip: To ensure the perfect match is selected prior to purchasing, the lock will need to be removed to compare the following 4 features (besides the width of housing): 1) The distance of the mounting holes measured from center to center, 2) The faceplate ends; rounded or square, 3) The position of the slotted keyway when in the locked position; at 45-degree angle or vertical, and 4) The shape of the housing corners at the rear; square or slanted. Installation Tip: Watch the manufacturer’s How-To Video that is linked to this item page. Review: It would be nice to have a longer hook. Review: As long as you know EXACTLY which mortise lock you need, the it is perfect. FYI, there are a LOT of different and very similar mortise locks out there. Double check which one you need. ## Features - REPLACE OLD OR BROKEN DOOR LOCKS – When your sliding door mortise lock is broken or old, don’t replace the door entirely, just get a new Prime-Line E 2121 Mortise Lock! - FOR SLIDING DOORS – This Mortise Lock can be used on sliding patio doors constructed of wood, aluminum and vinyl. Also fits doors using W&F manufactured handles. - EASY INSTALLATION – Installation is quick and easy – working sliding door locks are well within reach. Mounting Flanges have 6-32 tapped thread. - 45 DEGREE KEYWAY - This E 2121 mortise lock has a 45-degree angled keyway position when in the locked position. - PRODUCT INFO - The mounting hole centers of this lock measures 3-11/16” from center to center, and the rear housing corners are square. Mortise lock dimensions are: 1.125 inch(D)x0.5 inch(W)x3.688 inch(H). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DTIF6HW | | ASIN | B00DTIF6HW | | Batteries Included? | No | | Batteries Required? | No | | Color | Zinc | | Customer Reviews | 4.2 4.2 out of 5 stars (660) | | Customer reviews | 4.2 4.2 out of 5 stars (660) | | Date First Available | 31 March 2014 | | Date First Available | 31 March 2014 | | Included components | Mortise Lock | | Item Package Quantity | 1 | | Item Weight | 127 g | | Item model number | E 2121 | | Item model number | E 2121 | | Manufacturer | Prime-Line Products | | Manufacturer | Prime-Line Products | | Material | Aluminum Zinc Alloy Steel | | Number Of Pieces | 1 | | Part number | E 2121 | | Product Dimensions | 1.27 x 2.86 x 9.37 cm; 127.01 g | | Product Dimensions | 1.27 x 2.86 x 9.37 cm; 127.01 g | | Shape | Round | | Size | 3-11/16 in. | | Special Features | Keyway Lock | | Style | Modern | ## Product Details - **Brand:** PRIME-LINE - **Item dimensions L x W x H:** 13 x 29 x 94 millimeters - **Lock type:** Rim Lock - **Material:** Aluminum Zinc Alloy Steel - **Special features:** Keyway Lock ## Images ![Prime-Line E 2121 Mortise Lock - Adjustable, Spring-Loaded Hook Latch Projection for Sliding Patio Doors Constructed of Wood, Aluminum and Vinyl, 3-11/16”, 45 Degree Keyway, Round Face (Single Pack) - Image 1](https://m.media-amazon.com/images/I/51xP14VuUyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Review *by N***Y on 18 April 2023* It would be nice to have a longer hook. ### ⭐⭐⭐⭐⭐ Review *by A***N on 11 March 2020* As long as you know EXACTLY which mortise lock you need, the it is perfect. FYI, there are a LOT of different and very similar mortise locks out there. Double check which one you need. ### ⭐⭐⭐⭐⭐ Review *by A***R on 8 November 2020* Perfect replacement part for broken one. Screwdriver and lubricating oil was all that it took. Job completed in less than 15 minutes. ## Frequently Bought Together - Prime-Line E 2121 Mortise Lock - Adjustable, Spring-Loaded Hook Latch Projection for Sliding Patio Doors, 3-11/16 in., 45 Degree Keyway, Round Face (Single Pack) - Prime-Line E 2014 Stainless Steel Mortise Lock for Patio Sliding Doors Constructed of Wood, Aluminum, and Vinyl, 3-11/16 Inch, 45 Degree Keyway, Silver, Set of 1 - Prime-Line E 2199 Stainless Steel Mortise Lock - Adjustable, Spring-Loaded Hook Latch for Sliding Patio Doors Made of Wood, Aluminum & Vinyl, 3-11/16”, 45 Degree Keyway, Round Face (Single Pack) --- ## 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.nz/products/275948153-prime-line-e-2121-mortise-lock-adjustable-spring-loaded-hook](https://www.desertcart.nz/products/275948153-prime-line-e-2121-mortise-lock-adjustable-spring-loaded-hook) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-06-25*