Hirate 3 in Office Chair Casters with 3/8-16UNC Threaded Stem - Smooth

In this review of the Hirate 3 in Office Chair Casters, the bottom line is simple: these wheels are for anyone who needs quiet, floor-safe replacements for chairs or light furniture that accept an English 3/8 in threaded stem. The reviewer found the set of five to be noticeably smoother and quieter than worn original casters thanks to soft polyurethane wheels and double ball bearings, and they handled oak and tile without scratching. The most important reason to buy is the combination of a heavy duty steel body and floor-friendly wheel material that keeps movement effortless and surfaces protected.

Key Features

• English system stem: Uses a 3/8 in-16UNC coarse threaded stem so it fits chairs and furniture with the same imperial socket without adapters.
• Quiet & smooth rolling: High-tech elastic polyurethane wheels and internal double ball bearings provide near-silent, low-resistance movement across hardwood and tile.
• Floor friendly: The soft wheel surface is designed to resist scratches and avoid picking up crumbs or hair that could mar floors.
• Heavy duty construction: Steel caster bodies and quality bearings support collective load capacity up to the advertised weight for five casters, suitable for most chairs and light equipment.
• Easy install: The package includes screw inserts and threaded stems in a color-boxed set of five, making replacement straightforward.

Who It's For

The Hirate casters are ideal for home office users, gamers, and small workshop owners who need a quiet, durable set of replacement wheels for chairs and carts that accept a 3/8 in-16UNC stem. They work well for people with hardwood, oak, or tile floors who want to avoid scratches while keeping motion smooth.

They are not suitable for chairs that use metric M10 stems or for very heavy industrial machinery; if your stem is M10 or you need casters rated for extreme loads, you should look for a metric or heavy industrial alternative.

Pros & Cons

Pros

• Quiet and smooth rolling thanks to soft polyurethane and double ball bearings.
• Floor-safe design that did not scratch oak or tile during use in testing.
• Solid build quality with steel caster bodies that feel sturdy and durable.
• Package of five with screw inserts simplifies replacement for most office chairs.

Cons

• Strictly imperial 3/8 in-16UNC stems, so incompatible with metric M10 sockets.
• Not intended for very heavy industrial loads beyond typical office or light equipment use.

Specifications

Our Verdict

The Hirate 3 in casters are a practical, well-built upgrade for anyone with chairs or small furniture using an imperial 3/8 in stem who wants quieter, floor-friendly movement. They offer good value because of durable steel construction, smooth polyurethane wheels, and an easy install kit; just confirm your stem socket is not metric M10 before buying.

Frequently Asked Questions

Will these fit metric M10 stem sockets?
No. These casters use an imperial 3/8 in-16UNC stem and are not compatible with M10 metric sockets.

Are they safe for hardwood floors?
Yes. The soft polyurethane wheel surface is designed to be floor-friendly and did not scratch oak or tile in use.

How many casters come in the package?
The product ships as a set of five swivel casters and includes screw inserts for installation.