Coupling nut Extension nut
Coupling nut Extension nut
Coupling nut,what is used for?
Coupling nut is a type of fastener that is used to connect two threaded objects together. It has internal threads at both ends and is typically longer than a regular nut. Coupling nuts are used when a threaded rod or bolt needs to be extended, or when two threaded objects need to be joined together with a longer fastener.
Coupling nuts are often used in construction, plumbing, and electrical applications where it may be necessary to join two pieces of material together securely.
What size are coupling nuts?
| Size (diameter x pitch) | Thread Length | Overall Length |
|---|---|---|
| 1/4″-20 | 3/4″ | 1-3/8″ |
| 5/16″-18 | 7/8″ | 1-5/8″ |
| 3/8″-16 | 1″ | 1-7/8″ |
| 1/2″-13 | 1-1/4″ | 2-3/8″ |
| 5/8″-11 | 1-1/2″ | 2-7/8″ |
| 3/4″-10 | 1-3/4″ | 3-1/4″ |
| 7/8″-9 | 2″ | 3-5/8″ |
| 1″-8 | 2-1/4″ | 4-1/8″ |
| 1-1/8″-7 | 2-1/2″ | 4-5/8″ |
| 1-1/4″-7 | 2-3/4″ | 5-1/8″ |
What is the difference between a sleeve nut and a coupling nut?
A sleeve nut and a coupling nut are both types of fasteners used to join two threaded components together. However, there are some differences between the two:
Shape: Sleeve nuts are cylindrical in shape and have a smooth surface without any wrench flats. Coupling nuts are also cylindrical but have wrench flats on both ends for easier tightening and loosening.
Function: Sleeve nuts are used to join two threaded components by inserting one component into the sleeve and then threading the other component into the opposite end of the sleeve. The sleeve provides additional support and stability to the joint. Coupling nuts, on the other hand, are used to join two threaded rods or studs together. They are threaded internally and externally, allowing them to connect two threaded components of the same size or different sizes.
Length: Sleeve nuts are typically shorter than coupling nuts, as they are designed to provide support to the joint rather than connect two components together.
Material: Both sleeve nuts and coupling nuts can be made from a variety of materials, such as stainless steel, brass, or zinc-plated steel. The choice of material depends on the application and the environment in which the fastener will be used.
What is a coupling nut with different threads?
A coupling nut with different threads is a type of fastener that has different thread sizes on each end of the nut. This allows it to connect two threaded components with different thread sizes.
Coupling nuts are typically used to join two threaded rods or pipes together to create a longer assembly. However, when the threads on the rods or pipes are of different sizes, a coupling nut with different threads can be used to join them.
For example, if you have a threaded rod with 1/4-20 threads on one end and 3/8-16 threads on the other end, you can use a coupling nut with 1/4-20 threads on one end and 3/8-16 threads on the other end to connect the two threaded sections together.
Coupling nuts with different threads are available in various materials, such as steel, brass, stainless steel, and aluminum, and in different sizes and thread pitches to suit different applications.
