Description Antal T Track 40X8 Screws 100, Black, L=1000 Hard black anodized T-track, 40x8, holes distance 100 mm Technical Description Features American Metric Track dimensions 1.57 x 0.31 in 40 x 8 mm Holes distance 3.94 in 100 mm Ø screws 0.31 in 8 mm Material - Aluminum