The VDO 3 1/8 inches Spin-lok 600 405 is an 80mm instrument accessory made for Vision and Cockpit Series Instruments.
The Spin Lock is a mounting ring which is threaded. It screws on to the back of the gauge to hold into place in a panel. When a gauge is installed with the Spin Lok clamp, it provides a full 360 degrees of mounting force, preventing panel warping and gauge rotation.
This is a replacement Spin-Lok Mounting Ring. VDO gauges come with these mounting rings.
- Catalog number: 600 405