Altman Double 510 Pipe Clamp Tweet Description The Altman Double 510 Pipe Clamp consists of two butted standard 510 clamps used to attach two batten pipes together at variable angles. Details Additional Category Tags: Truss Equipment, Truss Clamps Category: Lighting & Studio Manufacturer Catalog Number: 510-2 Product Manufacturer: Altman Subcategory: Light Stands & Mounting