3000Pcs CHC-632-4 Concealed-Head Studs Spacer for Sheet Metal Stud Panels Screws

3000Pcs CHC-632-4/6/8/10/12/16 Concealed-Head Studs Self-clinching Stud Pin Truss Screw Spacers for Pcb Spacer Screws Sheet Metal Vis Tornillos Parafuso factory wholesale The fastener head is locked securely in a blind,milled hole and is able …