1000pcs CFHA-M3-12 Concealed-Head Studs Spacer Pcb Sheet Metal Stud PEM Standard

1000pcs CFHA-M3-4/6/8/10/12/16/20 Concealed-Head Studs Self-clinching Stud Pin Truss Screw Spacers for Pcb Spacer Screws Sheet Metal Vis Tornillos Parafuso Aluminium PEM Standard factory wholesale The fastener head is locked securely in a blin…