Angle Joint (Part 1005-A) designed for use in OnSpot automatic tire chain systems the permanently mounted traction aid that deploys chains under your vehicle’s drive tires to improve traction in icy or slippery conditions. The 1005-A angle joint is a mechanical linkage component used in the chain deployment linkage and pivot assembly, ensuring proper articulation of moving parts in the OnSpot system. As the pneumatic cylinder or actuator moves the linkage, the angle joint ensures that motion transfers smoothly with the correct orientation and alignment.