Material:high-quality alloy steel Surfacetreatment:polishing, blacking, galvanized Quality grade:g80 g70 g43 Safety factor:min 4 Size d*p mm 6 x 18 8 x 24 10 x 30 Working load limit 2 t 3t 5t Min.Breaking load 46 kn 60.6kn 126kn Weight per meter 0.82kg/m (1.38 ) 2.2kg/m Inside length 18mm 24mm 30mm Inside width 7.5mm 10mm 12.5mm