Description Antal T Track 26X4 Screws 50, Black, L=1000 Hard black anodized T-track, 26x4, holes distance 50 mm Technical Description Features American Metric Track dimensions 1.02 x 0.16 in 26 x 4 mm Holes distance 1.97 in 50 mm Ø screws 0.20 in 5 mm Material - Aluminum