What types of locking screws are available?

Several types of locking screws are available, each designed to address specific requirements and challenges. Here are some common types:

Thread-locking Screws:

These screws use a thread-locking compound, such as Loctite, applied to the threads. The compound solidifies to prevent the screw from loosening due to vibration or other forces.

Nylon-insert Locking Screws:

Nylon-insert locking screws feature a nylon collar or insert at the base of the threads. When the screw is tightened, the nylon deforms, creating resistance and preventing self-loosening.

Prevailing Torque Locking Screws:

These screws have a design that provides consistent resistance (prevailing torque) during both tightening and loosening. This can be achieved through deformed threads, elliptical threads, or other mechanical features.

Wedge-locking Screws:

Wedge-locking screws use a pair of washers with interlocking serrations. When tightened, the washers create a wedge effect, preventing the screw from rotating and loosening.

Double Nut Locking Screws:

This design involves using two nuts tightened against each other. The friction between the nuts increases resistance to vibration-induced loosening.

Adhesive Locking Screws:

Adhesive locking screws use a specialized adhesive applied to the threads. The adhesive cures over time, bonding the screw in place and preventing unintended loosening.

Spring Locking Screws:

These screws have a spring or Belleville washer under the head or between components. The spring provides constant pressure to keep the screw tight.

Bi-material Locking Screws:

Bi-material screws combine materials with different thermal expansion rates. This design enhances resistance to thermal cycling and prevents loosening caused by temperature variations.

Jam Nut Locking Screws:

Jam nuts involve using two nuts tightened against each other on the same threaded shaft. The friction between the nuts creates resistance to loosening.

Patch-locking Screws:

These screws feature a pre-applied patch of adhesive or locking material on the threads. The patch provides a secure connection after installation.

Breakaway Screws:

Breakaway screws have a specially designed head that breaks off after installation, providing a tamper-resistant and secure connection.