M4.5X20 Metric Pin Slotted Plain ISO 8752, Thermal Black (Pack Qty 5,000) BC-MI4.520PS

Will hold its position in an assembly by a predetermined spring tension. Spring pins are economical because they can simplify product design by replacing more expensive fasteners such as taper pins, set screws and straight pins Carbon Steel: Carbon: 0.65% minimum; Manganese: 0.5% minimum Hardened and tempered to a Vickers hardness of 420 HV30 to 560 HV30