Track Roller Closure Double Sealed Drive Type Hex Socket Duty Type Heavy Face Design Hex Socket Overall Length 1 11/64 in Roller Diameter 5/8 in Roller Head Type Flat Roller Material Stainless Steel Roller Width 27/64 in Rolling Element Rows 1 Stud Material Stainless Steel Stud Thread Size 5/16 In.-24 Stud Type Concentric System of Measurement Inch Bearing Type Needle Roller Drive Location Head