About Fixture Keys
Fixture keys are used to accurately locate fixtures or machine components. Typically, they are assembled into a hole or a machined slot. There are many different types of products. Standard fixture keys are slotted to mount on a specific machine table. Step fixture keys adapt a key-slotted fixture to machine tables with different slot sizes. Interchangeable fixture keys are used to mount any fixture on any machine. They eliminate the need to slot fixture and are suitable for most applications. Reamed-hole fixture keys are designed to fit two different table slots. They can be fastened from above or below with a socket-head cap screw. Locating keys are inserted from above after a fixture is placed on a machine, and then removed after the fixture is fastened. Pallet fixture keys are used to mount tooling plates and blocks on standard DIN pallets. Mill fixture keys are also commonly available.

