3-1/2" x 1-1/4" Semi-Steel Wheel Swivel Caster with 1/2" Threaded Stem - 350 Lbs Capacity

3-1/2" x 1-1/4" SEMI-STEEL WHEEL SWIVEL CASTER WITH 1/2" THREADED STEM - Part #: Q523522STL Cast Iron is the standard metal wheel used by most unless a heavier capacity or greater impact strength metal wheel is needed. For applications requiring more capacity or impact strength, check out the ductile steel & forged steel wheel caster options. Please note that all 2” wide wheels are heavy duty cast iron & come with thicker treads, stronger spokes, & larger hub diameter compared to the standard cast iron. While semi steel is very strong, it is tough on floors and could lead to floor damage. For heavy duty floor protective wheels, be sure to check out our polyurethane wheels. Additional Specs: Temp Range -40 to 600˚F, Hardness – Brinell 145, Tensile Strength 30K PSI Specifications:  Load Capacity (lbs.): 350 Link to Replacement Wheel: QSTL3514 Wheel Diameter: 3-1/2" Caster Rig Color/Finish: Silver Zinc Plated Tread Width: 1-1/4" Swivel or Rigid Caster: Swivel Wheel Type: Semi-Steel Swivel Radius: 3-1/8" Wheel Bearing Type: Plain Swivel Construction/Diameter: Kingpin Overall Height: 4-1/2" Temp Range: -40 to 600˚F Stem Size: 1/2" Wheel Hardness: Brinell 145 Stem Length: 1-1/2" Wheel Color: Grey Stem Thread Pitch: 13 Weight: 2.9 lbs.