---
product_id: 95291787
title: "FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish"
brand: "fjm"
price: "$4.08"
currency: USD
in_stock: false
url: https://www.desertcart.us/products/95291787-fjm-security-products-fjm-3780-ka-mei-3780-ka-fjm
store_origin: US
region: United States of America
---

# Diameter 7/8" Key Lock Zinc Alloy FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish

**Brand:** fjm
**Price:** $4.08
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Lock in Style and Security!

## Quick Answers

- **What is this?** FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish by fjm
- **How much does it cost?** $4.08 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/95291787-fjm-security-products-fjm-3780-ka-mei-3780-ka-fjm)

## Best For

- fjm enthusiasts

## Why This Product

- Trusted fjm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **📏 Perfect Fit:** Designed for glass doors with a spacer included.
- • **🔧 Built to Last:** Durable zinc alloy housing for long-lasting security.
- • **✨ Sleek Aesthetic:** Modern chrome finish elevates your security style.
- • **🔄 Effortless Access:** Key retaining feature ensures you never lose your key.
- • **🔑 Secure Your Space:** Keyed alike for convenience and peace of mind.

## Overview

The FJM Security 3780-KA Plunger Lock is a modern, chrome-finished locking solution designed for glass doors. With a diameter of 7/8" and a robust zinc alloy housing, it offers both durability and aesthetic appeal. This lock features a key retaining mechanism, ensuring that your key is only removed when locked, and comes with two keys and a glass door spacer for easy installation.

## Description

FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish

## Features

- Diameter 7/8", and material thickness up to 1-1/4"
- Keyed alike, key retaining (key only is removed in locked position)
- Bolt throw 5/8" with zinc alloy housing
- Comes with 2 keys and glass door spacer
- Available keyed alike, key retaining (key is only removed when in locked position)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TQ9R0FE |
| Additional Features | Key Lock |
| Brand Name | FJM |
| Color | Chrome Finish |
| Controller Type | Hand Control |
| Customer Reviews | 3.4 3.4 out of 5 stars (6) |
| Finish Types | Chrome |
| Global Trade Identification Number | 00027536965689 |
| Included Components | 2 keys, Glass Door Spacer, High Security glass plunger lock |
| Item Dimensions | 4.5 x 1.5 x 4 inches |
| Item Type Name | FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish |
| Item Weight | 4.48 ounces |
| Lock Type | Key Lock |
| Manufacturer | HitchSafe |
| Manufacturer Part Number | MEI-3780-KA |
| Material Type | Zinc |
| Model Name | FJM-3780-KA |
| Model Number | FJM-3780-KA |
| Number of Pieces | 1 |
| Style Name | Modern |
| UPC | 027536965689 |

## Product Details

- **Brand:** FJM
- **Item dimensions L x W x H:** 4.5 x 1.5 x 4 inches
- **Lock Type:** Key Lock
- **Material:** Zinc
- **Special Feature:** Key Lock

## Images

![FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish - Image 1](https://m.media-amazon.com/images/I/61aPITWt53L.jpg)
![FJM Security Products FJM-3780-KA MEI-3780-KA FJM Security 3780-KA Plunger Lock with Glass Door Spacer, Chrome Finish - Image 2](https://m.media-amazon.com/images/I/61VTlgIg7aL.jpg)

---

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-22*