Harken 13mm Low Beam Track - 2M [2707.2M]13mm Low Beam Track 2M This track is extruded from high grade 6061 T6 aluminum and hard coat anodized for a hard, long lasting surface. Specifications: Weight (g): 429 g Weight (oz): 15. 1 oz Mounting Hole Spacing (mm): 50 mm Mounting Hole Spacing (in): 1 31 32 in Fasteners (mm): 4 FH mm Fasteners (in): #8 FH in Minimum Curved Track Radius (m): 1. 52 m Minimum Curved Track Radius (ft): 5 ft Length (m): 2 m Length (ft in): 6' 7" ft in Line Shedding