Specification Brand : Lucas Color : Black Label : Lucas Manufacturer : Lucas MaterialType : Alloy Steel NumberOfItems : 1 PackageDimensions : 0.5004493347400 PartNumber : BSC-037 ProductGroup : BISS Basic ProductTypeName : MECHANICAL_FASTENERS Publisher : Lucas Size : One Size SmallImage_Height : 39 SmallImage_URL : https://m.media-amazon.com/images/I/31CcAW-ehqL._SL75_.jpg SmallImage_Width : 75 Studio : Lucas Title : 2 Pack 3/8" Bore Shaft Collar with 1/4-20 Set Screw - Black Oxide Finish BSC-037