1000 CHC-M4-16 Concealed-Head Studs Spacer for Pcb Sheet Metal Stud PEM Standard

1000Pcs CHC-M4-4/6/8/10/12/16/20/25 Concealed-Head Studs Self-clinching Stud Pin Truss Screw Spacers for Pcb Spacer Screws Sheet Metal Vis Tornillos Parafuso PEM Standand factory wholesale The fastener head is locked securely in a blind,milled…