Swellex bolts Length 3m 6900 pcs. Length 4m 8000 pcs. Length 6m 900 pcs. Thickness 2mm Bolt Diameter 36mm Original Tube 54mm Optimum Borehole 45-51mm Tensile Strength 240kN Minimum Elongation 20% Typical Elongation 30% Plate 200*200*8 Plate Hole 40mm