Hirate 4 Pack 3" Lockable Swivel Caster Wheels with 3/8"-16UNC Threaded Stem (2 Brake & 2 Non-Brake) for Carts, Furniture, Trolleys, DIY Stands - Heavy Duty Casters for Smooth Mobility in Warehouses, Workshops & Home Use

Heavy Duty 3/8” Threaded Caster Wheels Set of 4 for Home & Industrial Wheel Diameter 3 inch(75mm) Stud Diameter 3/8"-16 Measurement System English Mounting Type 3/8" Threaded Stem Special Features Set of 2 Wheels with Brake,2 Standard Casters(no brake), Include 4 Flange Lock Nuts Thread Length 0.79 inch(20mm) Stem Type 3/8"-16UNC Model Name 3/8" x 0.79" - 16UNC Installing Height 3.8” (96mm) Load Capacity 550 lbs Items 4 Material Durable Polyurethane Caster w/ Steel Bracket Included Components 4* 3/8"-16UNC Flange Lock Nuts Wheel Width 0.87" A good caster will help you prevent costly floor repairs and forget the desk chair mats. And lockable casters let you prevent unwanted movements when you’re sitting, which is especially common (and annoying) on hard surfaces. Hirate Chair Casters with Brakes will meet your need. High quality polyurethane material will not to scratch or leave marks on any surface, protect your floor perfectly. There are 2 Standard Casters and 2 Casters with Single Locking Mechanism, you can fix your chair as you like! Features: 2 PCS SINGLE LOCKABLE CASTER WHEEL: The brake locks the WHEELS ONLY and the swivel is still moveable. With brake, effective to stop and fix the device and prevent it moving to hurt others.HIGH QUALITY MATERIAL: Made of high quality polyurethane, which is high mechanical strength, shock absorption and low-noise.SMOOTH & QUIET ROLLING: Two precise bearings and soft polyurethane ensure that you can slide and glide around in total silence with these swivel casters. WARNTING TIPS: THIS IS IMPERIAL STEM 3/8”, NOT METRIC M10, IF YOURS IS M10 STEM, THIS IS NOT SUITABLE, PLEASE DO NOT PURCHASE IT, THANK YOU. Hirate 360 Degree Rotation & Single Lockable Caster Wheel for Home and Industrial English Unit Stem Size *Stem Type: IMPERIAL SIZE*Stud Diameter: 3/8”-16UNC*Stud Length: 0.79”(20mm)*Wheel Diameter: 3 “(75mm)*Wheel Width:0.87”*Installing Height: 3.8” Single Brake Feature 2PCS SINGLE LOCKABLE CASTER WHEEL:1)With brake, effective to stop and fix the device and prevent it moving to hurt others.2)The brake locks the WHEELS ONLY and the swivel is still moveable Heavy Duty & Durable Wheel *Wheel Material: Polyurethane*Bracket: High quality steel - galvanizing*Double Bearing: Steel ball bearing*Total Load Capacity: 550lbs360 Degree Swivel and Roll Smoothly: Very convenient to transform to any directions, and spend little strength to move on. SET OF 4 DURABLE CASTER WHEEL IN 3/8"-16UNC THREADED STEM Package Contains: 2 x 3" Casters Wheels with single brake2 x 3" Standard Caster Wheels(without brake)4 x 3/8"-16UNC Flange Lock Nuts