SNAP RIVET 4MM NYLON 6.6 BLACK; External Diameter:7.8mm; Grip Range Min:3.5mm; Grip Range Max:4mm; Overall Length:-; Mounting Hole Dia:4mm; Fastener Material:Nylon 6.6 (Polyamide 6.6); Product Range:WA-EXRV Series; SVHC:No SVHC (27-Jun-2018); External Depth:1.9mm; MSL:MSL 1 - Unlimited