Return edge galvanised trunking, designed for strength and rigidity and manufactured from pre-galvanised steel. 3m lengths. Newlec return edge trunking is supplied complete with: cover, screwdriver operated metal turnbuckles giving a positive quick and easy method of cover fixing, rounded corners with pressed captive nut inserts, M5 zinc plated screws. Complies with BS EN 50085-1:2005 & BS EN 50085-2-1:2006. Manufactured from hot-dipped, pre coated galvanised steel to BS EN 10327 and BS EN 10143.