Track-Loc Removable Caster Set with Mounting Plates & Hardware (choose 2" or 3" Casters).
Set includes:
4 x 2" Caster (Part # 359020) or 3" Caster (Part # 359035)
4 x Caster Plate (Part # Y.PLATE3.1)
4 x Low Profile Cap Nut (Part # 300200)
4 x Spring 3/8" x 5/8" (Part # 300500)
4 x #18 x 1.1/2" Phillips Flat Head Wood Screw (Part # 301080)
4 x 1 1/2" x 5/16" Hex Head Lag Screw (Part # 301090)