MaterialHardcoat AluminumFemale ThreadNPTFemale Thread Size4"Swivel ThreadNST (NH)Swivel Thread Size4"Weight Lb5.2800ConstructionRocker LugSeamless aluminum extrusion, hardcoat anodizedAvailable OptionsOther configurations and sizes are also available. Consult Dixon for pricing and availability.NotePart numbers are generated using the following rule: "Swivel size to Rigid size"