... 1/2"-6" 3. Thread: BSP OR NPT E Type Aluminum camlock coupling(cam and groove quick coupling, camlock ... . Casting method of our camlock coupling: gravity casting3. Specification of our camlock coupling: 1/2"-8"4. Camlock ... Type: A, B, C, D, DC, DP, E, F5. Body material: Aluminum A356 or A1046. Cam Lever Material ... gasket9. Thread of Our Camlock: NPT OR BSP E Type aluminum camlock coupling