I purchased this anodized aluminum cam action hold down at WoodCraft the other day. It seemed to be perfect for my Stinger dust foot adjustment, something a bit easier and much faster to adjust then the stock bolt and wing nut.
The bolt is 5/16" so I had to drill the 1/4" hole to fit, other than that I used a two and a quarter inch long carriage bolt so the square head would grip the plastic and prevent the bolt from turning. Adjusting the tightness of the grip is easy, just turn the carriage bolt a quarter turn at a time to get the fit just right.
The WoodCraft item number is 146630
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