G44 concrete sleeper fitted with Pandrol Fasclips, the green fastclips can be used with both UIC 60 and 113A rail, use white or white and green nylons for UIC60. Or blue and black nylons for 113A. Red Fastclips are used on F41 sleepers with white nylons and are for 113A rail only. (Purple = galvanised green, grey = galvanised red)