IMPERIAL STEM SIZE: Our caster are standard American Size 1/2"-13UNC, the stud diameter is 1/2" and the stud length is 0.79"(20mm), if your stem socket is METRIC M12, this caster is incompatible,please double check before purchase.
3 INCH LOCKABLE CASTERS: The heavy duty casters set of 4 with brake feature a locking design that it can brake the rotation of the caster only, but the stem is still moveable for direction.
PROTECT YOUR FLOORS: Our caster have a soft polyurethane rubber coating that makes them glide easily on any type of floor. They absorb shock and vibration, protecting your floors from scratches and marks.
WIDE APPLICATIONS: These caster can be used for a multitude of applications Including: Flight Cases, Instrument Cases, Dollies, Tool Boxes, Light Machinery, Equipment Stands, Mobile Workstations, Speakers, Cabinets, Stands, Amps, Electrical Enclosures, Furniture etc.
VALUED PURCHASE: The Hirate branded color-boxed package contains set of 4 Brake Casters with Flange Lock Nuts. Whatever reason, for any doubts, just contact us freely at any time.