Extrusion Connecting System Categories Extrusions Bestseller Base 50 extrusions Base 45 extrusions Base 40 extrusions Base 30 extrusions Base 20 extrusions Special extrusions Special extrusions Angle extrusions Hinge extrusions, handle extrusions, square pipe Connecting technology Universal Connector Standard Connector Combination Connector Extension Connector Mitre Connector Special Connector Threaded Connector Accessories Plastic profile Fixing Kit Mounting brackets Attachment rail Uniblock Clamping block Attachment bracket T-bolts Threaded Elements Threaded plates Double threaded plates Halfround threaded plates Extrusion nuts Light extrustion nuts Double extrusion nuts Hammer nuts Rhombold nuts Anti-twist spigots Threaded inserts Base Connecting Elements Roller Elements Plastic Elements Cable Ducts Panels Hinges and Joints Fitting Pneumatic Elements Dynamic Elements Corner piece Lifting Columns Roller system CORNER PIECE FLAT 20 D71-00 CORNER PIECE FLAT 30 B71-00 CORNER PIECE FLAT 40 C71-00 CORNER PIECE FLAT 50 A71-00 CORNER PIECE FLAT FOR EXTRUSION A02-8 A71-08 CORNER PIECE FLAT FOR EXTRUSION C02-8 C71-08 CORNER PIECE ROUND 20 D70-00 CORNER PIECE ROUND 30 B70-00 CORNER PIECE ROUND 40 C70-00 CORNER PIECE ROUND 50 A70-00