M4X0.7X3.20 Metric Thin Head Round Open-End Ribbed Rivet Nut Steel Zinc Yellow Zinc (Pack Qty 2,000) BC-LS-M43.20SY

The thin head design enables the fastener to have a flush fit once seated in place. Used in electrical engineering, automotive, home appliances and other light-duty applications. Ribbed body offers greater torque-to-rotation resistance than non-ribbed bodies Steel: 1108 or 1110 Steel