Carbon Steel Fasteners M5 Galvanized Self Clinching Insert Nut US$0.0012-0.023 / Piece High Precision Customer Hardware Pem Self-Clinch Nut US$0.005-0.05 / Piece ISO13918 Carbon Steel Fasteners Threaded Welding Stud PT US$0.005-0.031 / Piece Cls Self-Clinc...