4" x 1-1/4" Semi-Steel Wheel Swivel Stem Caster (1/2") - 300 lbs. Capacity

4" x 1-1/4" Semi-Steel Wheel Swivel Stem Caster Semi-Steel / Cast iron offers a strong, durable, cost effective solution for heavy loads. Hard tread rolls easily and offers high abrasion resistance. The Tread face is precisely machined for a smooth, centered ride, tread edge is machined round. Tread & Core: Steel Alloy Bearing: Plain Bore Rig: Zinc-Plated Swivel Caster With Swivel Dust Cap, Threaded Stem Capacity: 300 Lbs. Color: Silver Hardness: Brinell 145 Tensile Strength: 30,000 PSI Temperature Range: -45°F to 600°F Load Capacity 300 Lbs. Wheel Diameter 4" Tread Width 1-1/4" Tread Type Steel Alloy Core Type Steel Alloy Bearing Type Plain Bore Wheel Color Silver Overall Height 5" Swivel Radius 3-7/16" Stem Size 1/2" NC13 x 1-1/2"L Tensile Strength 30,000 PSI Temperature Range -45° F to 600° F