3 Inch Threaded Stem Swivel Caster Wheels Set of 5, Heavy Duty Dual Brake, Quiet Floor‑Safe Polyurethane

3 inch Threaded Stem Caster Wheels Set of 5 Durable, quiet replacement casters with metal dual brakes on three wheels and two rolling wheels. Designed for office chairs, swivel stools, DIY furniture and project builds. Smooth, floorsafe polyurethane tread, heavy duty steel bracket, and double bearing construction for reliable rolling and long life. Key benefits Protects floors: Soft polyurethane tread rolls smoothly without marking or scratching hardwood, tile or carpet. Quiet and smooth: Double bearing design and polyurethane cover reduce noise and improve glide across surfaces. Strong support: Full set of five supports up to 650 pounds total, suitable for heavy chairs and small furniture. Secure locking: Three casters include a metal dual brake that locks both the wheel and swivel for stable positioning. Easy fit and install: Standard imperial threaded stem fits most chair bases using the 3/8 inch by 0.79 inch 16 TPI coarse thread. Simple screwout and screwin replacement, no special tools required. Specifications Wheel diameter: 3 inch Wheel material: Polyurethane Bracket material: 2 mm thick industrial steel Bearing: Double bearing structure Mount type: Threaded stem Thread size: 3/8 inch16 TPI (imperial, not metric) Thread length: 0.79 inch (approximately 20 mm) Thread diameter: 3/8 inch (approximately 9.5 mm) Load capacity: 650 pounds for the set of five Set contents: 5 caster wheels (3 with safety dual brakes, 2 without brakes), 5 3/8 inch nuts available in four nut style options (threaded screw inserts, flanged nuts, nylon lock nuts, or hex nuts), 1 wrench included Important fit note The threaded stem is imperial: 3/8 inch diameter with 16 threads per inch and a 0.79 inch length. Please confirm these dimensions match your chair or furniture before ordering to avoid fitting issues. Easy installation 1. Remove old casters by turning counterclockwise. 2. Screw threaded stem casters into place clockwise until snug. 3. Use the included wrench and appropriate nut option if needed for a secure fit. How the brake works The metal pedal brake is a dualaction lock. Press the pedal to stop the wheel and prevent the caster from swiveling, holding the chair or furniture firmly in place. Typical use scenarios Office chair replacement: Upgrade noisy or floordamaging casters to quiet polyurethane wheels with locking brakes for stable seating. DIY furniture and workshop projects: Add mobility to cabinets, rolling workstations, and custom furniture while keeping floors protected. Gaming or computer chairs and swivel stools: Improve glide and reduce noise while adding a firm lock option for stability when needed. What is included 5 x 3 inch caster wheels (3 with dual brakes, 2 without brakes) 5 x 3/8 inch nuts (choose one nut type per from threaded inserts, flanged nuts, nylon lock nuts, or hex nuts) 1 x wrench Materials and durability Polyurethane tread for long wear and floor protection 2 mm industrial steel bracket for strength Double bearing construction for smooth, lasting performance This set provides a straightforward way to worn casters or add mobility and stability to projects while protecting flooring and reducing noise. Please doublecheck the imperial stem size before to ensure compatibility.