---
product_id: 23381384
title: "U 9919 White, Sliding Patio Door Keyed with Bolt Lock (Single Pack)"
brand: "prime-line"
price: "16802CFA"
currency: XOF
in_stock: true
reviews_count: 11
category: "Prime Line"
url: https://www.desertcart.sn/products/23381384-u-9919-white-sliding-patio-door-keyed-with-bolt-lock
store_origin: SN
region: Senegal
---

# Multi-use: patio, shed, utility doors 5/16 inch diameter keyed bolt Surface mount, easy install U 9919 White, Sliding Patio Door Keyed with Bolt Lock (Single Pack)

**Brand:** prime-line
**Price:** 16802CFA
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in peace of mind with style and strength!

## Quick Answers

- **What is this?** U 9919 White, Sliding Patio Door Keyed with Bolt Lock (Single Pack) by prime-line
- **How much does it cost?** 16802CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/23381384-u-9919-white-sliding-patio-door-keyed-with-bolt-lock)

## 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

- • **Discreet Yet Powerful:** Modern white finish blends seamlessly with your door frame, keeping security subtle but effective.
- • **Sleek Surface Mount Design:** Installs effortlessly on sliding doors without compromising your door’s aesthetic or function.
- • **Robust Security, Minimal Fuss:** Diecast steel construction ensures durability while the keyed bolt lock delivers reliable protection against forced entry.
- • **Long-Throw Bolt for Maximum Hold:** 1.5-inch bolt throw locks your door firmly in place, giving you peace of mind and enhanced safety.
- • **Versatile Protection for Every Door:** Perfect for sliding patio doors, sheds, utility doors, and even bi-folds—security that adapts to your lifestyle.

## Overview

The Prime-Line U 9919 is a white, diecast steel keyed bolt lock designed for sliding patio doors and more. Featuring a 5/16 inch diameter bolt with a 1.5-inch throw, it mounts on the surface for easy installation and provides robust protection against forced entry. Its versatile design suits sheds, utility doors, and bi-folds, combining modern aesthetics with reliable security.

## Description

This is a keyed bolt lock with a 5/16 inch diameter. It is a surface mounted patio door deadbolt lock that has a 1-1/2 inch long throw bolt that can be manually locked or key locked. Can be used on patio doors, sheds, and utility doors to help prevent a forced entry. May also be mounted in a ventilating position and keep the door secure.

Review: Simple & Clear Instruction at PrimeLine.net - Got the simple and clear instruction at PrimeLine.net. Used a pencil to mark the ceiling hole and drilled it first. Tried to open (down) and close (up) many times to ensure the smooth operation into the ceiling hole. Next marked the screws positions on the sliding door frame. Drilled the tiny holes on the sliding door frame at the marked positions. Then drove the actual screws to tighten the lock to the door frame. Besides the enhanced security, this can also prevent autistic and dementia people from eloping.
Review: Solidly built, great mechanism, useful for purposes other than sliding patio doors - I got this to secure a bi-fold door, which are not easy to secure unless you want an ugly 90-degree latch and a padlock. This solution is much more discrete and appealing looking. I added it to keep my 7 year old daughter out who is like a mouse, constantly stealing food from the pantry and nibbling it. We find wrappers behind and under all the furniture. No more. The pantry is now like a vault. This lock has a VERY long pin. I added door-stop side molding to further secure the door in locked position. Works GREAT!!

## Features

- Designed for sliding patio doors
- Helps protect against a forced entry
- Surface mount design
- Diecast construction painted white
- Can be used on shed and utility door

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000XPIGNA |
| Additional Features | Key Lock |
| Best Sellers Rank | #43,008 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #92 in Door Latches & Bolts |
| Brand Name | PRIME-LINE |
| Color | White |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.5 4.5 out of 5 stars (293) |
| Finish Types | White |
| Global Trade Identification Number | 00049793099198 |
| Included Components | Sliding Patio Door Keyed with Bolt Lock |
| Item Dimensions | 1 x 1.19 x 4.75 inches |
| Item Type Name | Sliding Patio Door Keyed with Bolt Lock |
| Item Weight | 0.6 Pounds |
| Lock Type | Key Lock |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Material Type | Diecast/Steel |
| Model Number | U 9919 |
| Recommended Uses For Product | Security |
| Shape | D Shape |
| Style Name | Modern |
| UPC | 049793099198 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** PRIME-LINE
- **Item dimensions L x W x H:** 1 x 1.19 x 4.75 inches
- **Lock Type:** Key Lock
- **Material:** Diecast/Steel
- **Special Feature:** Key Lock

## Images

![U 9919 White, Sliding Patio Door Keyed with Bolt Lock (Single Pack) - Image 1](https://m.media-amazon.com/images/I/41voTrc+IbL.jpg)

## Questions & Answers

**Q: How does this fit into a sliding glass door. I use my sliding glass door like a front door. Can we lock / unlock this from the outside?**
A: No.  This lock is designed to attach to the inside edge of the sliding portion of the door.  It is not designed to attach to the facia of the door.

**Q: Need for dementia brother, Is it double sided deadbolt?**
A: No. It goes in the sliding glass door track. It would be quite difficult for a dementia patient to figure out how to use it even if it is not locked with the key. The bolt only goes down when you pull the lever below the lock and visa-versa. It will lock down the door even without using the key. The key is only if you want to be sure the lever cannot be pulled down. The only time I feel a need to lock the deadbolt is if I will be out of town.

**Q: hi i need to purchase a spare set identical to ones purchased recently**
A: I'm not sure what your question is but this product is great. Easy to install and locks up nice and tight.

**Q: Can this be used on an outside panel?  In other words, is the lock corrosion resistant?**
A: It is used on the outside of a patio door that is under cover not exposed to direct moisture. It is not rust resistant.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple & Clear Instruction at PrimeLine.net
*by R***R on January 1, 2026*

Got the simple and clear instruction at PrimeLine.net. Used a pencil to mark the ceiling hole and drilled it first. Tried to open (down) and close (up) many times to ensure the smooth operation into the ceiling hole. Next marked the screws positions on the sliding door frame. Drilled the tiny holes on the sliding door frame at the marked positions. Then drove the actual screws to tighten the lock to the door frame. Besides the enhanced security, this can also prevent autistic and dementia people from eloping.

### ⭐⭐⭐⭐⭐ Solidly built, great mechanism, useful for purposes other than sliding patio doors
*by D***K on January 15, 2023*

I got this to secure a bi-fold door, which are not easy to secure unless you want an ugly 90-degree latch and a padlock. This solution is much more discrete and appealing looking. I added it to keep my 7 year old daughter out who is like a mouse, constantly stealing food from the pantry and nibbling it. We find wrappers behind and under all the furniture. No more. The pantry is now like a vault. This lock has a VERY long pin. I added door-stop side molding to further secure the door in locked position. Works GREAT!!

### ⭐⭐⭐⭐⭐ Good deal
*by P***I on February 23, 2026*

Excellent quality and value

## Frequently Bought Together

- Prime-Line U 9919 White, Sliding Patio Door Keyed with Bolt Lock (Single Pack)
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- 10Pack Small Locks with Same Keys, 3/4" (20mm) Wide Lock Body Solid Brass Padlocks Keyed Alike, Mini Padlocks for Suitcases/Luggage/Backpacks/Tool Box/Diary Books/School lockers etc.

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**Shop now:** [https://www.desertcart.sn/products/23381384-u-9919-white-sliding-patio-door-keyed-with-bolt-lock](https://www.desertcart.sn/products/23381384-u-9919-white-sliding-patio-door-keyed-with-bolt-lock)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-24*