Loosening prevention screw "Polywave"

Excellent anti-loosening effect! The screw head itself plays a role greater than that of a washer.

Crown Precision Industry's "Polywave" bends the flange at three points, applies carburizing heat treatment, and gives elasticity to the flange, serving as a loosening prevention mechanism. The head of the screw is angled and folded into a triangular wave shape, and because it undergoes heat treatment to provide elasticity and hardness, the screw head itself plays a role greater than that of a washer. Additionally, when the Polywave is tightened, the wavy seating surface of the Polywave elastically adheres to the object being fastened, resulting in a return torque that is greater than the tightening torque. 【Features】 ■ Superior loosening prevention effect compared to spring washers and toothed washers ■ Return torque increases relative to tightening torque ■ Improved work efficiency and cost reduction ■ Simplification of operations *For more details, please refer to the PDF document or feel free to contact us.

Other machine elementsnutbolt