DB Version Adds Key Locking

Our company, Kunshan Qunju Metal Products Co., Ltd., produces this product. The model number is QJ-GD1001. The letters DB stand for double locking. This product size is 2 inches. It is different from a normal slide latch. A normal latch only has a bolt. This product has a lock cylinder on top of the bolt. You push the bolt out first. Then you use a key to lock it. This way, no one can pull it back from the outside. It is suitable for side doors on garages or for warehouse gates. We use galvanized steel to make this garage door slide bolt lock. The steel thickness is 2 millimeters. We hit the lock body ten times with a hammer. The lock body did not bend. The cylinder still turned. Our surface finish can be zinc plating or powder coating. Powder coating colors are customizable. Black and gray are the most popular. One of our customers is a Dutch maker of farm equipment doors. They ordered 2,000 pieces in black powder coating. The black lock matched their red farm doors. The color contrast looked very good.
Waterproof Design For Rainy Markets
Our company has 60 employees. Five of them are R&D staff. When they designed this product, they paid special attention to waterproofing. There is a rubber cover over the key cylinder. Rainwater cannot get into the cylinder. We did a lab test. We sprayed the lock with a shower head for 30 minutes. The inside of the cylinder stayed dry. This detail is very popular in Northern European markets. They have a lot of rain. Our yearly export value is over 6 million US dollars. We are a formal import and export company. We have customs registration. We are also an A-class taxpayer for many years. If your order is shipped to Europe or America, we provide complete customs documents. These include commercial invoices, packing lists, and certificates of origin. Our finance team knows how to fill out these documents correctly. No mistakes.

Product Data Table
|
Parameter |
Details |
|
Model Number |
QJ-GD1001 |
|
Type |
Slide bolt lock with cylinder (DB = double locking) |
|
Size |
2 inches |
|
Material |
Galvanized steel |
|
Steel Thickness |
2 mm |
|
Surface Finish |
Zinc plated or powder coated (black, gray, custom) |
|
Hammer Test |
10 hits (no bending, cylinder works) |
|
Waterproof |
Rubber cover over cylinder (30 min spray test) |
|
Customer Example |
Netherlands (2,000 pieces, black powder coat) |
|
Yearly Export |
Over $6 million USD |
|
Warranty |
1 year |
Why Choose This Lock
This garage door slide bolt lock gives you two layers of security. First, the bolt itself blocks the door. Second, the key cylinder locks the bolt in place. An attacker cannot simply pull the bolt back. They would need to pick the lock or break the cylinder. The steel body is 2 mm thick. That is stronger than many standard locks. The rubber cover over the keyhole keeps rain and dust out. In wet climates, a lock without a cover will rust inside. The cylinder will become hard to turn. Our lock stays smooth. We support OEM and ODM. You can send your drawing. We provide samples. You pay shipping. We accept third-party inspection. We offer a one-year warranty. If goods are damaged in shipping, we use transport insurance. Our lead time for standard products is 15 to 30 days. We have stock for common sizes. Payment is 30% deposit and 70% balance. We accept USD, EUR, GBP, and CNY. We pack this product in cartons or wooden crates. We also offer mixed orders. You can order the 2-inch DB and 3-inch DB together. This saves you freight cost. Our order tracker will update you daily. We will deliver on time. This garage door slide bolt lock is ideal for side doors that need extra security.



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