This type of sleeper anchor does not require bolts.
This eliminates the need to check the torque, etc., and this sleeper anchor supports the center
parts of No.3, No. 6, P5H, P6H, PR5H and PR6H PC sleepers.
Also this sleeper anchors shall be used to reduce track lateral shift and prevent
buckling at sharp curves, because they enforce the ballast lateral resistance.
