Counterbore Nut Thread Adaptor, 1/4-20 pack of 6

The CN-Q20-6 Counterbore Nut Thread Adaptor provides an 1/4-20 thread to a standard 1/4-20 counterbore. Threaded counterbore nuts are used to convert a counterbore into a threaded hole. Parts like translation stages which features a counterbore can be attached to a plate from the back side. The counterbore adapter allows this mounting option. These adapters feature a slotted edge that enables tightening or removal. The CN-Q20-6 is a set of 6 thread adaptor nuts.