Cam Follower Closure Double Sealed Drive Type Slotted Duty Type Standard Face Design Screwdriver Slot Overall Length 4 1/4 in Roller Diameter 3 in Roller Head Type Flat Roller Material Plastic Roller Width 1 3/4 in Rolling Element Rows 1 Stud Material Bearing Steel Stud Thread Size 1-1/4 In.-12 Stud Type Concentric System of Measurement Inch Bearing Type Bushing Drive Location Head and Stud