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$411.99
As low as:
$411.99
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SPECIFICATIONS
A machine screw and free-spinning lock-washer manufactured as one assembly. Conical SEMS: Provides a higher retained clamp load & improved compensation for thermal cycling and vibration. Can accept a high tension load and maintain spring action. The washer design makes for better control during installation, and improved tool bit life. Ideal for clamping fragile materials and for spanning large clearance holes.