This is a 22 mm wide and 4000 mm long "Sliding Bolt" track. A solid track with no holes for installation, but a groove where hexagon bolts and sealing washers slides in (not included).

The bolts (DIN standard) are inserted in the groove with sealing washers (164-481) fitted. Sealing compound is applied between the flanges of the washers. The track is then turned and mounted on deck.

This way a retrofit upgrade to new tracks can be made without drilling new holes in deck as the fasteners are located according to the existing bolt holes.  

System: 22
Profile: Slidingbolt
Length: 4000 mm
W: 22 mm
H: 13 mm
Fasteners: Sealing washer 164-481 + M5 bolt
Comment: Max bolt spacing, c-c (mm) = 100