For applications where metal belt fasteners can't be used, the Alligator Plastic Rivet Fastener System is a long-lasting, easy-to-install solution for light duty applications. Our sturdy non-metallic fastener is also a low-cost alternative to the time and expense associated with vulcanization. Fastener plate leading edges are beveled to ensure a smooth, low-profile splice. Design permits use on applications with minimum pulley diameters as small as 1-1/2" (38mm) and on belts 1/32" to 1/8" (0.8mm to 3.2mm) thick.