Nylon Locking Patches and Threadlocking Adhesives

Nylon locking patches and threadlocking adhesives are different approaches to reducing threaded fastener loosening. Specify the required material or process on the drawing so the screw, mating thread and assembly requirements can be assessed together.

Mechanical locking patches

A nylon patch bonded to the screw thread creates interference and resistance to rotation when the screw engages the mating thread. Mechanical patches do not require adhesive curing. Reuse capability and installation torque must be checked against the selected product specification and application.

Chemical threadlocking systems

Threadlocking adhesives use a chemical locking system. The selected product determines activation or curing requirements, assembly conditions and performance. A generic request for a coated or glued screw does not define these requirements.

What to specify for your custom screw

Provide the screw drawing, mating-thread details, material and finish, patch location and coverage, assembly torque requirements, operating temperature, exposure conditions and any reuse or vibration-test requirements. If a particular branded coating is required, include its exact designation for sourcing and process review.

Send your drawing and locking requirements to sst@szsst88.com. Shi Shi Tong will review the proposed fastener and confirm the required process and validation plan before production.

Technical references: Nylok mechanical locking and Nylok chemical locking.