---
product_id: 7636447
title: "Prime-Line E 2478 Horizontal Trim Lock Set, 3-3/8 In. Backset, Black Housing w/Brass Plated Knobs (1 Set)"
brand: "prime-line"
price: "¥10472"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/7636447-prime-line-e-2478-horizontal-trim-lock-set-3-3
store_origin: JP
region: Japan
---

# 3-3/8 in. backset precision fit Classic bit key (skeleton key) system Diecast metal & stamped steel durability Prime-Line E 2478 Horizontal Trim Lock Set, 3-3/8 In. Backset, Black Housing w/Brass Plated Knobs (1 Set)

**Brand:** prime-line
**Price:** ¥10472
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock timeless style with a modern edge!

## Quick Answers

- **What is this?** Prime-Line E 2478 Horizontal Trim Lock Set, 3-3/8 In. Backset, Black Housing w/Brass Plated Knobs (1 Set) by prime-line
- **How much does it cost?** ¥10472 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7636447-prime-line-e-2478-horizontal-trim-lock-set-3-3)

## 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

- • **Built to Last:** Robust diecast metal housing paired with brass-plated knobs ensures enduring style and strength.
- • **Effortless Installation:** Simple setup requiring only basic tools—upgrade your door in no time.
- • **Weather Resistant Finish:** Brass and black painted components resist wear, maintaining elegance over time.
- • **Exclusive Keyed-Alike System:** All locksets come keyed alike for seamless access—spare keys available on request.
- • **Vintage Vibes, Modern Reliability:** Mortise lock design with authentic old-school charm for interior doors.

## Overview

The Prime-Line E 2478 Horizontal Trim Lock Set combines vintage skeleton key aesthetics with durable diecast metal and brass finishes. Designed for interior mortised doors, it features a 3-3/8 inch backset and weather-resistant components, offering both classic appeal and reliable security. Easy to install and keyed alike for convenience, this lockset is perfect for professionals seeking a blend of heritage style and functional performance.

## Description

Prime-Line E 2478 Horizontal Trim Lock Set, 3-3/8 In. Backset, Black Housing w/Brass Plated Knobs (1 Set)

## Features

- Typically used in a mortised door for an old-school or vintage look
- Diecast metal with a brass finish
- Uses a bit key or skeleton key
- Often found in an interior door
- Easy to install with only a few simple tools

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | PRIME-LINE |
| Special Feature | Weather Resistant |
| Lock Type | Mortise Lock |
| Item dimensions L x W x H | 7.5 x 2.19 x 8.75 inches |
| Material | Mixed Materials |
| Recommended Uses For Product | securing interior doors in old-school, vintage, or mortised settings |
| Style | Horizontal |
| Color | Brass Finish/Black |
| Number of Pieces | 1 |
| Finish Type | Brass |
| Included Components | Door Knob and Lock |
| Controller Type | Hand Control |
| Shape | shape |
| Item Weight | 16 ounces |
| Control Method | App |
| UPC | 049793024787 |
| Model Name | Door Knob and Lock |
| Global Trade Identification Number | 00049793024787 |
| Manufacturer | Prime-Line Products |
| Part Number | E 2478 |
| Item Weight | 1 pounds |
| Product Dimensions | 7.5 x 2.19 x 8.75 inches |
| Item model number | E 2478 |
| Is Discontinued By Manufacturer | No |
| Size | 3-3/8 in. |
| Finish | Brass |
| Item Package Quantity | 1 |
| Handle Material | Alloy Steel, Brass |
| Special Features | Weather Resistant |
| Usage | specific_uses_for_product |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |

## Product Details

- **Brand:** PRIME-LINE
- **Special Feature:** Weather Resistant
- **Lock Type:** Mortise Lock
- **Item dimensions L x W x H:** 7.5 x 2.19 x 8.75 inches
- **Material:** Mixed Materials

## Images

![Prime-Line E 2478 Horizontal Trim Lock Set, 3-3/8 In. Backset, Black Housing w/Brass Plated Knobs (1 Set) - Image 1](https://m.media-amazon.com/images/I/51sBJuxYRcL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.jp/products/7636447-prime-line-e-2478-horizontal-trim-lock-set-3-3](https://www.desertcart.jp/products/7636447-prime-line-e-2478-horizontal-trim-lock-set-3-3)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-20*