Locking Threaded Spring Plunger

The locking threaded spring plunger is a special fastener comprising a thread body, a spring, and a steel ball. They are known for their high strength, strong vibration resistance, long service life, and easy installation.

Typically made from high-strength alloy steel like grade 12.9 or stainless steel, they are normally treated with black oxide, or galvanizing to enhance corrosion resistance. The steel ball creates friction with the plunger, providing a secure fit and preventing loosening.

The locking threaded spring plunger features nylon patching on the thread for locking and increases thread friction. This feature makes them ideal for applications requiring vibration and loosening, such as in machinery, automotive, aerospace, and bicycles.

In automated production, they are used to secure robot joints and conveyor belt components, ensuring continuous and efficient operation. In consumer electronics, its hidden installation allows secure connections without affecting the product's appearance. In construction, they maintain structural integrity under extreme temperatures.

Raw Material

Cold Forging

Threading

Auto Lathe

Auto Lathe

Table Lathe

CNC Lathe

Quality Checking

Inspection

Packing

Clipers Micrometer

Torque

Depth Micrometer

Plug

Thread Guage

Ring Guage

Hardness Tester

Projector

Salt Spray Testing

Offer a variety of surface treatments for our screws to meet different needs and environmental conditions. Such as zinc plating, nickel plating, hot-dip galvanizing, anodizing, zinc nickel alloy, dacromet coating, phosphating, etc.

With 18 years of experience in the fasteners area, Zeyao Hardware specializes in manufacturing custom fasteners, including screws, bolts, nuts, rivets, standoffs, spacers, wrenches, pins, and more. Welcome to send your inquiries to get a free quote.