A tine connection device for removably connecting a tine to an elongate tine bar in an agricultural harvesting machine wherein the device comprises a mounting base that is contoured to simultaneously engage the tine bar and a mounting portion of the tine and in combination with a contoured clamp fastener, restrain the mounting portion of the tine in a predetermined position relative to the tine bar. The mounting base and clamp fastener further enable a plurality of tines to be easily and uniformly connected to a tine bar while the specific contours of the mounting base and clamp fastener in adjacent contact with the tine serve to reduce stress concentrations thereby promoting extended tine service life.