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What are the dimensions of a standard Tubular Private Latch?

May 12, 2025Leave a message

A tubular private latch is a common yet essential component in the realm of door hardware. As a supplier of tubular private latches, understanding the dimensions of these products is crucial for both manufacturers and end - users. This blog will delve into the standard dimensions of tubular private latches, shedding light on their importance and how they fit into the broader context of door locking systems.

The Basics of Tubular Private Latches

Tubular private latches are designed to provide privacy and security for interior doors. They are typically used in residential settings, such as bedrooms and bathrooms, where privacy is a key concern. These latches operate on a simple mechanism where the latch bolt protrudes from the edge of the door and engages with the strike plate on the door frame, holding the door closed.

73-E590 Latch-2

Key Dimensions of Tubular Private Latches

Overall Length

The overall length of a tubular private latch is an important dimension as it determines how the latch will fit into the door. Standard overall lengths can vary, but common sizes range from around 2 - 3 inches (50.8 - 76.2 mm). A shorter length may be suitable for thinner doors, while a longer length is often required for thicker doors to ensure proper installation and functionality. For example, in a standard interior door with a thickness of 1 - 3/8 inches (34.925 mm), a latch with an appropriate overall length will ensure that the latch bolt can fully engage with the strike plate and provide a secure lock.

Latch Bolt Projection

The latch bolt projection refers to the distance that the latch bolt extends from the edge of the door when it is in the locked position. Standard latch bolt projections typically range from 1/2 inch (12.7 mm) to 5/8 inch (15.875 mm). A greater projection generally provides a more secure lock, as it means the latch bolt will engage more deeply with the strike plate. However, it's important to ensure that the projection is compatible with the door and the strike plate to avoid any interference or difficulty in opening and closing the door.

Backset

Backset is another critical dimension for tubular private latches. It is the distance from the edge of the door to the center of the bore hole where the latch is installed. The most common backset sizes for residential doors in the United States are 2 - 3/8 inches (60.325 mm) and 2 - 3/4 inches (69.85 mm). Choosing the correct backset is essential, as an incorrect backset can lead to improper installation and a latch that does not function correctly. For instance, if the backset is too small, the latch may not align properly with the strike plate, making it difficult to lock and unlock the door.

Bore Hole Diameter

The bore hole diameter is the size of the hole that is drilled in the door to accommodate the tubular private latch. Standard bore hole diameters are typically 1 - 1/8 inches (28.575 mm) for tubular latches. This diameter is designed to fit the latch body snugly, ensuring stability and proper operation. If the bore hole is too large, the latch may rattle or not function correctly, while a bore hole that is too small may make it impossible to install the latch.

Importance of Standard Dimensions

Standard dimensions for tubular private latches are of utmost importance for several reasons. Firstly, they ensure compatibility between different components of the door locking system. For example, a latch with a standard backset will be compatible with a strike plate that is designed for that same backset, allowing for easy installation and proper functioning. Secondly, standard dimensions make it easier for manufacturers to produce these latches efficiently. They can use standardized molds and manufacturing processes, which can lead to cost savings and higher - quality products. Finally, for end - users, standard dimensions mean that they can easily replace a faulty latch with a new one that will fit their existing door hardware without having to make major modifications to the door or the frame.

Related Products in Our Catalog

As a supplier of tubular private latches, we also offer a range of related products. Our Cylindrical Lever Lock and Fire - rated Tubular Lock provides enhanced security and is suitable for areas where fire - safety is a concern. The Cylindrical Lever Locks and Tubular Locks offer a variety of styles and functions to meet different customer needs. And our Deadbolt Door Lock provides an additional layer of security for exterior doors.

Customization and Variations

While standard dimensions are widely used, we also understand that some customers may have specific requirements. That's why we offer customization options for tubular private latches. We can adjust the overall length, latch bolt projection, backset, and other dimensions to meet the unique needs of our customers. Whether it's for a custom - built door or a special application, our team of experts can work with you to design and manufacture a tubular private latch that fits your exact specifications.

Quality Assurance

At our company, we are committed to providing high - quality tubular private latches. We use only the finest materials in the manufacturing process, ensuring that our latches are durable and long - lasting. Our products undergo rigorous quality control checks to ensure that they meet or exceed industry standards. From the initial design to the final product, we pay close attention to every detail to provide our customers with the best possible door hardware solutions.

Cylindrical Lever Lock And Fire-rated Tubular Lock

Conclusion

Understanding the dimensions of a standard tubular private latch is essential for anyone involved in the door hardware industry, whether you are a manufacturer, installer, or end - user. The key dimensions, such as overall length, latch bolt projection, backset, and bore hole diameter, all play a crucial role in the proper installation and functionality of the latch. As a supplier, we offer a range of products with standard dimensions as well as customization options to meet the diverse needs of our customers. If you are interested in purchasing tubular private latches or any of our related products, we encourage you to contact us for more information and to start a procurement discussion. We look forward to working with you to provide the best door hardware solutions for your projects.

References

  • "Door Hardware Handbook" by the Door and Hardware Institute
  • Industry standards and specifications for tubular private latches
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