Qualfast: G1.1/2 BSPF Parallel Pipe Nut A4 Cylindrical Pipe Thread Stainless Steel A4 DIN 431A MPN: G1.1/2 BSPF Parallel Pipe Nut A4 Attributes: Box Quantity: 1 Driving Features: Hexagon Leading Standard: DIN 431 A Material: A4 Stainless Standards Met: DIN 431 A System of Measurement: Imperial Thread: Cylindrical Pipe Thread Thread Direction: Right Thread Size: G1.1/2