A web cover for an endless conveyor is formed from one continuous belt (10) of wear-resistant, non-metallic sheet material in which a plurality of closely spaced holes (12) are provided. The web cover is endless and intended to overlie the screen (20) of said conveyor wherein the web cover is formed with the ends of the belt (10) being joined together by fastening means. The fastening means comprises two parts (30, 32). Both parts (30, 32) have reflexive sections and have two limbs (34) with one part (30) being secured to each end of the belt (10) with a limb (34) above and below the said end of the belt (10). One part (30) is provided with a lengthwise series of spaced hook elements (36) and the other part (32) is provided with a correspondingly spaced lengthwise series of apertures (38) through which extends and is secured a rod (40) around which each hook element (36) is engagable and is held.