Track Roller Closure Double Sealed Drive Type Hex Socket Duty Type Heavy Face Design Hex Socket Overall Length 2 3/8 in Roller Diameter 1 5/8 in Roller Head Type Flat Roller Material Stainless Steel Roller Width 7/8 in Rolling Element Rows 1 Stud Material Stainless Steel Stud Thread Size 7/8 In.-14 Stud Type Concentric System of Measurement Inch Bearing Type Needle Roller Drive Location Head