Parker Metric Hose Insert 1/4in X M16 X 1.50 Male Straight Heavy Series - Sparex Part S.3411604Parker Metric Hose Insert 1 4'' x M16 x 1. 50 Male Straight Heavy Series S. 3411604 Introducing the Parker Metric Hose Insert, a reliable and durable solution for your hose connection needs. Designed for heavy duty applications, this male straight insert features a 1 4'' diameter and M16 x 1. 50 thread size, ensuring a secure fit and optimal performance. Product Specifications Type Hose Insert Diameter 1 4'' Thread Size M16 x 1. 50 Series Heavy Series