Black-er threaded stem industrial caster 1.Wheel diameter:75/100/125mm 2.Wheel material:rubber 3.Bracket:zinc plated 4.Housing made of pressed steel,double ball bearing threaded stem swivelhead,wheel axle with nut,dustguard. Available sizes: model numberwheel size (mm) load capacity (kg) overall height (mm) bolt size I12-75-xxx75*227093M8*10I12-100-xxx100*2780152M10*15I12-125-xxx125*3490197M10*15Please contact us if you have any questions about our sizes. Our factory can produce the products according to custom Good quality and reasonable price. Welcome to inquiry!