Powertool Direct

Completely knurled speed-clamping nuts permit fast adjustments and hold securely when tightened.
Cross-drilled nuts slide on clamp rods until they come up against a corner clamp; then their threads engage. Release by turning back the nut and then they are free sliding again.
4-way speed clamp includes four corners (glass-filled nylon with brass inserts), four brass speed-clamping nuts and four 1/4-20 threaded rods (black oxide finish). Clamps up to 23' square.
Extension set includes four 1/4-20 threaded rods and four coupling nuts (black oxide finish). Increases 4-way speed clamp capacity to 44' square or 65' x 23' rectangle.
Extra speed nuts available for use as jig and fixture parts.