---
product_id: 501356824
title: "E 2798 Mortise Keyed Lock Set, Matte Black Knob, Single Pack | Replaces Broken Antique Lock Sets, Fits 1-3/8 In.-1-3/4 In. Interior Doors"
brand: "prime-line"
price: "KD 16.50"
currency: KWD
in_stock: true
reviews_count: 9
category: "Prime Line"
url: https://www.desertcart.com.kw/products/501356824-e-2798-mortise-keyed-lock-set-matte-black-knob-single
store_origin: KW
region: Kuwait
---

# Key-activated lock bolt Reversible left/right install Fits 1-3/8"–1-3/4" doors E 2798 Mortise Keyed Lock Set, Matte Black Knob, Single Pack | Replaces Broken Antique Lock Sets, Fits 1-3/8 In.-1-3/4 In. Interior Doors

**Brand:** prime-line
**Price:** KD 16.50
**Availability:** ✅ In Stock

## Summary

> 🔐 Upgrade your door’s style and security with timeless matte black sophistication!

## Quick Answers

- **What is this?** E 2798 Mortise Keyed Lock Set, Matte Black Knob, Single Pack | Replaces Broken Antique Lock Sets, Fits 1-3/8 In.-1-3/4 In. Interior Doors by prime-line
- **How much does it cost?** KD 16.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/501356824-e-2798-mortise-keyed-lock-set-matte-black-knob-single)

## 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

- • **Matte Black Modern Classic:** Sleek matte black finish blends timeless style with contemporary edge.
- • **Secure Key-Activated Privacy:** Lock bolt keyed from both sides for ultimate control and peace of mind.
- • **Complete Kit, Ready to Install:** Includes all components—knobs, spindle, strike, keys, and fasteners—for a hassle-free upgrade.
- • **Universal Fit for Interior Doors:** Designed to replace locks on doors 1-3/8" to 1-3/4" thick—perfect for modern and vintage homes alike.
- • **Reversible Installation Flexibility:** Easily switch between left or right-hand door setups with clear instructions and video support.

## Overview

The Prime-Line E 2798 Mortise Keyed Lock Set is a durable, steel-constructed lock designed for interior doors 1-3/8" to 1-3/4" thick. Featuring a matte black finish and reversible installation, it offers key-activated privacy locking from both sides. This complete single-pack kit includes all necessary hardware for a seamless replacement or upgrade, combining classic aesthetics with modern functionality.

## Description

If your lock set is acting up or broken, this mortise lock set is the perfect choice for updating and fixing hardware on interior doors. Made from steel and featuring a matte black finish, it has a beautiful traditional look with modern construction! It can be used for left or right-hand installations, and has a lock bolt that is key activated from both the inside and outside. It can be used as a privacy lock on bedrooms, bathrooms and other interior doors. When you are updating hardware on older interior doors in your home, this mortise keyed lock set with a classic bronze knob is the perfect choice! This lock set fits 1-3/8 inch-1-3/4 inch interior doors, and can be easily installed.

Review: They are reversible, but not easy - I opened up the mechanism to see if it was reversible, and springs and pieces went flying. Fortunately the instructions do have a good picture of the innards, and it appears the image shows the striker flipped, so it sort of has reversing directions. To get the cover back on, it helped to stick a screwdriver through the cover and through where the knob would go through. That part craves flight, so needs something to keep it in check. From there it’s a bunch of jiggling and aligning tabs. There’s a spring backer tab that I fought the most, then the striker needs pushed in slightly, then the knob pass-through can be shoved into place, and the striker body has a prong that pokes out of a slot in the cover. If the cover doesn’t sit flat, it’s one of those out of place. It’ll make sense once in there, but if it doesn’t go back together smoothly, this will help with troubleshooting. And after all of that, the holes and chamber didn’t align with my old unit. It was about a half inch shorter. If it were taller I’d carve out to make it fit, but I didn’t want to add filler and re-stain this vintage door. The face plates and knobs were the same size, so I was able to swap over all of that. I mostly wanted to get rid of 90’s gold, so mission accomplished, even if I had to retain vintage guts. The striker and deadbolt in this kit are gold, so best of both worlds with my setup.
Review: Well-made, great color - This was absolutely beautiful in color. I have 100 year-old house and I waited a long time to find this with a plate that was affordable.

## Features

- NEW INSTALLATION FIT: This lock set is suitable for replacing broken lock sets on 1-3/8 inch to 1-3/4 inch thick interior doors. INSTALLATION TIP - Use of thread locking adhesive on the set screw will keep knob from slipping
- BEAUTIFUL MATTE BLACK KNOB LOCK SET: The E 2798 black knob set is suitable for replacing or updating interior door hardware. With a matte black finish, it's a quality choice for your next project
- LEFT OR RIGHT HAND INSTALLATIONS: The steel case mortise assemblies can be used for left or right hand installations and can easily be installed. This procedure is in the instructions and How-To Video
- REPLACE ANTIQUE LOCK SETS: This E 2495 Mortise lock set is a suitable choice for replacing broken knobs on old doors
- LOCK BOLT KEY: This entry door lock set can be used as a privacy lock on bedrooms, bathrooms and other interior doors - the lock bolt is key activated from both the inside and outside
- DURABLE STEEL CONSTRUCTION: Made from steel with a matte black finish, this mortise lock set features traditional styling combined with modern construction for long-lasting performance on interior doors
- COMPLETE LOCK SET INCLUDED: This single pack includes all necessary components for a complete mortise keyed lock installation, providing both security and functionality for your interior door needs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHKYC5QY |
| Additional Features | Key Lock |
| Best Sellers Rank | #35,626 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #54 in Door Lock Replacement Parts |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | Matte Black |
| Control Method | Touch |
| Controller Type | Hand Control, Mechanical knob |
| Customer Reviews | 3.8 out of 5 stars 113 Reviews |
| Global Trade Identification Number | 00049793927989 |
| Included Components | Mortise lock set, door knobs, spindle, strike, 2 keys and fasteners |
| Item Dimensions | 3.5 x 0.88 x 7 inches |
| Item Type Name | Mortise lock set |
| Item Weight | 0.68 kg |
| Item dimensions L x W x H | 3.5 x 0.88 x 7 inches |
| Lock Type | Key Lock |
| Manufacturer | Prime-Line Products |
| Manufacturer Part Number | E 2798 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | Mortise lock set |
| Model Number | E 2798 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 2 |
| Recommended Uses For Product | Interior doors, privacy lock |
| Shape | Rectangular |
| Special Feature | Key Lock |
| Style Name | antique |

## Product Details

- **Brand:** PRIME-LINE
- **Item dimensions L x W x H:** 3.5 x 0.88 x 7 inches
- **Lock Type:** Key Lock
- **Material:** Alloy Steel
- **Special Feature:** Key Lock

## Images

![E 2798 Mortise Keyed Lock Set, Matte Black Knob, Single Pack | Replaces Broken Antique Lock Sets, Fits 1-3/8 In.-1-3/4 In. Interior Doors - Image 1](https://m.media-amazon.com/images/I/71tmVwjd7RL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ They are reversible, but not easy
*by B***N on December 3, 2023*

I opened up the mechanism to see if it was reversible, and springs and pieces went flying. Fortunately the instructions do have a good picture of the innards, and it appears the image shows the striker flipped, so it sort of has reversing directions. To get the cover back on, it helped to stick a screwdriver through the cover and through where the knob would go through. That part craves flight, so needs something to keep it in check. From there it’s a bunch of jiggling and aligning tabs. There’s a spring backer tab that I fought the most, then the striker needs pushed in slightly, then the knob pass-through can be shoved into place, and the striker body has a prong that pokes out of a slot in the cover. If the cover doesn’t sit flat, it’s one of those out of place. It’ll make sense once in there, but if it doesn’t go back together smoothly, this will help with troubleshooting. And after all of that, the holes and chamber didn’t align with my old unit. It was about a half inch shorter. If it were taller I’d carve out to make it fit, but I didn’t want to add filler and re-stain this vintage door. The face plates and knobs were the same size, so I was able to swap over all of that. I mostly wanted to get rid of 90’s gold, so mission accomplished, even if I had to retain vintage guts. The striker and deadbolt in this kit are gold, so best of both worlds with my setup.

### ⭐⭐⭐⭐⭐ Well-made, great color
*by G***A on April 27, 2026*

This was absolutely beautiful in color. I have 100 year-old house and I waited a long time to find this with a plate that was affordable.

### ⭐ HORRIBLE!!!!!
*by A***A on November 3, 2024*

Yes, these knobs look nice. But that is about it. They jam all of the time. Some times the knobs just spin and fall off without the door actually opening. Currently as I’m writing this review, I am stuck in my room with my daughter and my husband is 2 hours away because once again the knob is jammed. What a waste of money!!!!!

## Frequently Bought Together

- Prime-Line E 2798 Mortise Keyed Lock Set with Matte Black Knob – Perfect for Replacing Broken Antique Lock Sets and More, Fits 1-3/8 In.-1-3/4 In. Interior Doors, Matte Black (Single Pack)
- Prime-Line E 2499 Solid Brass Vintage Door Knob Spindle Set, 2-1/4 In. Outside Diameter, Bronze (Single Pack)
- newliplace 1 Pack Vintage Old Style Door Knob Set with Spindle, Antique Door Knobs Replacement Set for Interior Doors, Matte Black

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-08-28*