AAGUT 4 Inch Caster Replacement Wheels for Rubber Cart, Swivel Stem Casters, 7/16"x 1-3/8" Stem TPR Rubber Wheel for Mop Buckets, Pack of 4 - Walmart.com
Black Vinyl Base Glide - 5/16" Threaded Stem - caster wheel distributing company, heavy equipment, caster wheels online
Caster Sockets
Oajen Caster Socket Furniture Insert for 5/16" - 18 Thread, use with 1" OD Round Tube, 4-Pack: Stem Casters: Amazon.com: Industrial & Scientific
4pcs Threaded Leveling Feet Adjustable Table Furniture Feet Levelers Screw On Heavy Duty Desk Chair Cabinet Dresser Bench Leg Leveler Screw In With Threaded Inserts Support 1320lbs T Nut Kit - Industrial
Best Threaded Stem Caster Sockets Available | Apollo Caster
1-3/8 x 1/2 Glass/ Nylon Socket | Apollo Caster
Generic Skelang 12 Pcs Caster Sockets Metal Caster Stem Sleeve,Wheel Socket Furniture Insert for Stem
Stainless Steel Stem Casters | Caster City
Oajen Caster Socket Furniture Insert for Metric M8-1.25 Thread, use with 1" OD Square Tube, 4-Pack: Stem Casters: Amazon.com: Industrial & Scientific