3 inch Swivel Stem Caster Wheels w Heavy Duty 5/16"-18UNC Threaded Stem,Silent Non-marring Polyurethane Castosr,Set of 5(3 Castors with Safety Dual Brakes,2 No Brake),Fit Chairs,Carts,Shelf,Workbench

MALLLALA,3" office chair wheels with threaded stem 5/16" X 0.79"-18TPI coarse thread (US),the stud diameter is 5/16",the stud length is 0.79",no noise rubber wheel,protect floors from damage,heavy duty threaded stem caster replacement for office/desk/game chairs,set of 5(3 castors with safety dual brakes,2 castors no brake) Product Description: Encased with soft Polyurethane,bracket made by 2mm thick industrial steel,double bearings structure,helped these parameter,our stem wheels transform your office chair into a stylish modern piece furniture in minutes.the chair with these swivel castors glide across any floor as smooth as silk and also quietly,they will not mark up your floors,so you no need to use chair mats any more.brake pedal mechanism,when applying the brake,keep these in place firmly and stably Product Specifications Item: Caster Wheel Color: Black Material: Polyurethane,Steel Model Numbe: 3" Wheel,5/16" X 0.79"-18 Stud Special Features: Set Of 5 Wheels（3 castors with safety dual brakes,2 castors no brake) Number Of Items: 5 Mounting Type: Threaeded Stem Load Capacity: 650 Pounds Wheel Diameter: 3 Inch Threaded Stud Diameter: 5/16" Threaded Stud Length: 0.79" Measurement System: English Included Components: 5 X 5/16”-18 Nuts,1 X Wrench Product Feature ✅Silent & Smooth Rolling; ✅Heavy Duty Capacity Load; ✅No Damage To Floors; ✅Easy To Install; ✅Dual Brake Feature; ✅Long Lifespan; Package Details( We Offer 4 Kinds Of Nuts For Your Option ) 5 X 3" caster Wheels(3 caster with brake,2 caster no brake) 5 X 5/16" Threaded Screw Inserts / Flanger Nuts / Nylon Nuts / Hex Nuts 1 X Wrench Note The Threaded Stem Is 5/16" * 0.79"-18, Its Measurement System Is English,Not Metric.

• 【English Caster wheels】Reminder that our threaded stem casters are English wheels not metric wheels.the stud diameter is 5/16"(8mm),the Stud length is 0.79"(20mm), carefully double check your old wheel's size before purchasing
• 【No Marks,No Noise,Replace Chair Mats】Be different from the original old hard plastic wheels,our upgrade modern stylish chair wheels wrapped with soft polyurethane,will not damage your floors,silently and smoothly glide on hardwood floors,carpet,tile,etc.,and even glide over bigger debris or hairs without getting stuck.you no need to worry will disturb your around ,enjoy a silent working environment;
• 【Safety & Dual Locking Brake】The 5/16" casters are metal pedal brake(double brake),when in lock position,it locks both the wheel and the rotation,and ensures the chair maintains at the original place stably,this is useful for people who want to have a rest on the chair ,or safe for kids and elder people,as it eliminates the hazard caused by unconscious moving;
• 【Easy to Install】 Installing this set of stem casters is easy,maybe one can finish the job by his own.first,screw out the old wheels at anti-clockwise direction,then,screw in the new wheels at clockwise;in addition,the heavy duty 3 inch castors support load up to 650lbs with a set of 5;
• 【What You Get 】3 X wheels with double lock,2 X standard wheels (no brake),1 X wrench,5 X threaded inserts.