Patent ID: 8167353

Claim:
An elongated side rail for attachment to a side wall of a pickup truck cargo box having a front and a tailgate, the elongated side rail being a portion of a tonneau cover assembly, the elongated side rail comprising: a securing portion that can be secured to the sidewall; a fastener support member interconnected to the securing portion, the fastener support member including a receiving surface having first and second edges; wherein the first edge is closest to a center of the cargo box when the elongated side rail is operatively secured to the sidewall; a component of strip fastening material having a height; a slat on which the component of strip fastening material is secured; wherein the slat and the component of strip fastening material are at least partially located on the receiving surface between the first and second edges; and a ridge extending upwardly from the slat, the ridge being located proximate the first edge of the receiving surface; the ridge having a height with respect to the receiving surface higher than the height of the fastening strip, the ridge also extending above the second edge with respect to the receiving surface.