---
product_id: 624939012
title: "Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack)"
brand: "prime-line"
price: "£19.14"
currency: GBP
in_stock: true
reviews_count: 13
category: "Prime Line"
url: https://www.desertcart.co.uk/products/624939012-prime-line-e-28316-mortise-style-fluted-glass-door-knobs
store_origin: GB
region: United Kingdom
---

# Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack)

**Brand:** prime-line
**Price:** £19.14
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) by prime-line
- **How much does it cost?** £19.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/624939012-prime-line-e-28316-mortise-style-fluted-glass-door-knobs)

## 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

## Description

If your door knob set is acting up or broken, this E 28316 Mortise style fluted glass door knob set is the perfect choice for updating and fixing hardware on interior doors. With a beautiful and classic fluted glass and brass finish, it’s the perfect choice for your antique or vintage interior doors. Installation is a breeze, and the glass door knob set features 2 inch outside diameter knobs. These door knobs are for interior use only, and includes a 17/64 inch x 3-1/2 inch steel spindle with 3/8 inch -20 threads. This classic style door knob set fits square drive spindle systems commonly found in antique and vintage door hardware sets, and it can adjust to accommodate different door thicknesses. The diecast base on these knobs include the set screws for fastening the knobs to the square spindle, but it does NOT include any of the following components and they must be purchased separately: The internal mortise lock body, the door rosettes, the trim and strike plates, or the latch and fasteners. For matching rosettes and latch see Prime-Line’s model numbers E 2282 and E 2541. Note: This item cannot be used on pre-bored doors that have large, newer style door knob holes without first prepping them to receive this hardware. Installation tip #1: Because the fasteners of the rosettes (purchased separately) require a solid surface to mount to, the large 2-1/8 inch (approximate size) holes must first be filled with a hardening filler, to then be able to receive the rosette fasteners. Products like Fix-It-All and Bondo Body Filler have worked well for some, but care must be used to avoid damaging any prefinished door surfaces during application and finishing. Installation tip #2: Apply a small amount of Loctite ThreadLocker 271 to the set screw threads in the event they are loosening – Loctite purchased separately.

Review: Easily replaced ..works great...looks unique - Nice replacement for glass doorknob. Easily installed.
Review: good quality - I love the charm of the glass door knobs but not the price. These were a perfect replacement! Reasonably priced, perfect fit and matches my older glass door knobs in the house. The door knob is functional, nice weight- didn't feel flimsy and fits perfect.

## Features

- FLUTED GLASS KNOB SET - The E 28316 fluted glass door knob set is ideal for replacing or updating interior door hardware. With beautiful classic fluted glass and brass plated finish, it’s the perfect choice for your next project.
- REPLACE ANTIQUE KNOB SETS – This E 28316 Mortise lock set is the perfect choice for replacing broken knobs on old or antique/vintage interior doors.
- BEAUTIFUL, CLASSIC DESIGN – The design of these clear glass fluted knobs with a brass plated finished knob base will fit perfectly into a vintage or antique style door.
- INSTALLATION TIP - Use of thread locking adhesive on the set screw will keep knob from slipping
- CAUTION - This door knob is made of glass. It can crack or break if banged against a wall or hit with a solid object. Broken glass is sharp and can seriously cut you. If knob cracks or becomes loose, replace immediately. DO NOT let children hang from this

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXFXH7DV |
| Additional Features | Easy to Install, Sturdy |
| Best Sellers Rank | #20,911 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #118 in Door Knobs |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | Brass |
| Customer Reviews | 4.5 out of 5 stars 419 Reviews |
| Exterior Finish | Brass |
| Finish Types | Plated |
| Global Trade Identification Number | 00049793883162 |
| Hand Orientation | Ambidextrous |
| Handle Attachment Mechanism | Screws |
| Handle Material | Alloy Steel, Brass, Glass |
| Handle Type | Knob |
| Included Components | Installation Hardware |
| Item Depth | 2 inches |
| Item Dimensions L x W | 5.75"L x 2"W |
| Item Type Name | Glass Door Knob Set |
| Lock Type | Mortise Lock |
| Manufacturer | Prime-Line Products |
| Manufacturer Part Number | E 28316 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel, Brass |
| Model Number | E 28316 |
| Number of Items | 1 |
| Product Dimensions | 5.75"L x 2"W |
| Projection Distance | 2 Inches |
| Shape | Round |
| Style | Traditional |
| Style Name | Traditional |
| Unit Count | 1.0 Count |

## Images

![Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) - Image 1](https://m.media-amazon.com/images/I/61QWtBfb8hL.jpg)
![Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) - Image 2](https://m.media-amazon.com/images/I/71zN4+8jhgL.jpg)
![Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) - Image 3](https://m.media-amazon.com/images/I/61eOlJGs+nL.jpg)
![Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) - Image 4](https://m.media-amazon.com/images/I/71xkPNVx5aL.jpg)
![Prime-Line E 28316 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2 In. Outside Diameter Knobs, Brass Plated (Single Pack) - Image 5](https://m.media-amazon.com/images/I/51b4eym+Z+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easily replaced ..works great...looks unique
*by C***D on March 24, 2026*

Nice replacement for glass doorknob. Easily installed.

### ⭐⭐⭐⭐⭐ good quality
*by N***G on March 17, 2025*

I love the charm of the glass door knobs but not the price. These were a perfect replacement! Reasonably priced, perfect fit and matches my older glass door knobs in the house. The door knob is functional, nice weight- didn't feel flimsy and fits perfect.

### ⭐⭐⭐⭐⭐ Quality
*by P***L on May 5, 2026*

These doorknobs are awesome. Out home was built in the 1800s. Most of the original old doorknobs were removed. These make a nice addition to our old home

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-18*