These economical yet durable camcleats from Race-Lite are just the thing for quick set and release of sheets and other lines on your sailboat. They are also handy for other jobs where precise adjustment of rope or line is needed. See also RL-261, and RL-262 (CURRENTLY OUT OF STOCK).
Bolts are on 1-1/2" centers - works best with 7/16" line or smaller.
Below is is a photo of our RL-260 holding the mainsheet on the tiller of Will Hladic's Musicbox2