The VDO 3 3/8 in. Spin-lok 600 406 is an 85mm accessories made for Vision, Cockpit and Series 1 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: 600 406