All 21 products from Wenzhou Pioneer Standard Component Co., Ltd..

These self-locking screw nuts are designed to prevent loosening under vibration and torque. The nuts feature a nylon insert that creates friction against the screw threads, ensuring a secure hold.

These nuts are designed for secure fastening in machinery and industrial applications. Manufactured with precision, they provide a reliable and durable fastening solution.

These are nylon insert lock nuts, often called nyloc nuts or elastic stop nuts. They include a nylon collar insert to resist turning, which provides a locking action that prevents loosening from vibration and torque.