The ESSENTRA / RICHCO TR-1 is a Black UL94 HB Nylon Truss Tough Push-In Rivet designed for secure fastening in a range of panel thicknesses from 1.5 to 4.6 mm (0.059 - 0.181 in). Compatible with hole diameters ranging from 4.9 to 5.2 mm (0.193 - 0.205 in), this rivet features an anchor length of 11.3 mm (0.445 in) for reliable and durable fastening applications.