Threaded fittings - Import export

SLEEPER SCREWS DEFINITION OF THE PROFILE IN ACCORDANCE WITH THE TECHNICAL SPECIFICATIONS OF NF F50 - 006 • designated by the diameter D and length apart from the head L, expressed in mm. • used for fastening to a wooden sleeper: • either in direct laying, by tightening on the rail foot, • or through the intermediary of chairs or clips. DIRECT LAYING It is advisable to use 3 sleeper bolts per rail, making 6 per sleeper, positioned in alternating triangles. • It is possible to use them on concrete with a matching threaded fitting or polypropylene plug. Protection Plain or galvanised