1-1586037-4 is a vertical pin header connector designed for wire-to-board connectivity within the VAL-U-LOK connector system. This 4-position header is manufactured from UL 94V-2 nylon material without PCB pegs, featuring a standard tin plating finish. The connector has a centerline spacing of 3.5 mm and is designed to accept pin contacts for reliable electrical connections. With dimensions of approximately 9.6 mm (B dimension) and 13.6 mm (C dimension), this header provides compact integration on printed circuit boards. The product is RoHS compliant and suitable for applications requiring robust wire-to-board interconnections in industrial and consumer electronics.