3 Inch Swivel Caster Wheels with Safety Dual Locking Set of 4, UNC 5/16"-18x1" Threaded Stem Mount Industrial Casters, Castors Heavy Duty Total Capacity 450Lbs for Carts Furniture Dolly Workbench.

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About this product

Product features: Stem diameter: 5/16″. Stem length: 1″.Wheel diameter×thickness: 2.95 inch (75mm) ×1.26 inch (32mm). Material: steel and PVC. Wheel Color: Gray. Total height: 5.31 inch (135mm). Installation height: 4.33 inch (110mm). 360 degrees swivel casters rolling smooth; safety dual locking locks both the wheels and stem; heavy duty, load capacity 450lbs per set. Package includes: 3-Inch wheels (all with brakes)×4Threaded embedded parts×4Washers×4Nuts×4Wrench×1Tips: What does the 5/16″-18×1″ mean? It’s the UNC threaded stem model, stem diameter is 5/16″(7.9mm), 18 screw teeth per inch, threaded stem length is 1″(25mm), make sure the stem size is suitable for your installation before your purchase. Who chose us? For DIY workbench, cart wheels, furniture, office chairs, desks, tables, wood, threaded pipe, metal board, suitable for hardwood floors, marble floors, carpet, indoor and outdoor floors. How to use? For cart boards and wire racks which with holes, you need insert the bolts into the holes, put the washers on and tighten the nuts; For wooden legs of table and furniture, you need to drill holes and insert the bolts in and then tighten it; Or drill holes, screw in the embedded parts, and then tighten the bolts; For pipes with threaded holes or replace your old furniture casters, make sure the bolt size is match it up with the threaded holes before your purchase.