| Cast Iron shoulders Cast shoulders, Insert,Iron shoulders,casting shoulders, Forged Steel Weld-On Shoulder Material: pearlitic malleable iron, spheroidal graphite,low carbon steel Type: single stem iron shoulders, twin stem iron shoulders Approximate shipping weight: 1.7 lbs. Normally packed 50 per bag Rail size: 115-140RE Insert/iron shoulders are casted in the concrete ties for fixation of elastic clips Used in pre-stressed concrete ties or Bi-Block or Twin Block concrete ties |