Patent ID: 7056200

Claim:
An abrasive article for a grinder having a motor-driven, externally-threaded spindle, comprising: a molded abrasive disk comprising abrasive particles distributed in a binder, the abrasive disk comprising a working surface, a depressed center surface depressed from the working surface, and a second major surface opposite the working surface; and a fastener comprising a body portion wit an aperture and first and second ends, an outwardly extending flange with a front surface at the first end, tines having a portion projecting perpendicular to the outwardly extending flange, and mounting apertures adjacent the tines that connect the molded abrasive disk and the front surface, and an inwardly extending flange comprising a single internal thread at the second end, the fastener being molded into the abrasive disk so that the tines are embedded in the abrasive disk, the front surface of the outwardly extending flange is coplanar with the depressed center surface of the abrasive disk and the inwardly extending flange is embedded between the depressed center surface and second major surface of the abrasive disk.