1/2" Threaded Stem Casters

These 1/2-13 threaded stem casters fit carts, stands, and equipment that use a 1/2 in threaded insert or welded nut. Casters in this collection range from about 200 to 350 lb per caster. That band is fail-closed from active titles on this page. Stem length varies by listing, so match the old stem before you order. Soft rubber or polyurethane (poly or urethane) protects finished floors in food service, bakeries, schools, hospitals, laboratories, and light material handling. Soft rubber or TPR is the better pick when the floor has chips or grit. These are threaded stems, not 7/16 grip-ring stems. Expanding rubber stems for round and square tubing are on the broader stem pages. When loads exceed this stem band, move up to a plate caster. Capacities below are per caster unless a listing says set. Smaller sibling: 3/8 threaded stem casters. Parent stem aisle: stem casters. Read the listing for the exact wheel size, overall height, and mount shown.

Shop by type

4 types

Wheel = wheel diameter · capacity is per caster.

Capacity on this hub

Mount	Per caster	Typical use
1/2-13 UNC threaded stem	About 200 to 350 lb	Light carts, racks, equipment legs

Admin ACTIVE titles for 1-2-threaded-stem-casters, pulled October 26, 2026; verified title min 200 / max 350 [S1].

How to choose

Confirm the tapped hole is 1/2-13 UNC (not metric and not 3/8-16).
Match stem length and overall height so the unit stays level.
Size load per caster; move to a plate mount when loads exceed this stem band.

Threaded stem questions

1/2-13 or 3/8-16?

They are different threads. Measure the old stem or the tapped hole. The 3/8 threaded stem hub covers the smaller family.

When should I switch to a plate caster?

When loads push past about 350 lb per corner, or when the frame has a flat pad better suited to a top plate. Use the plate casters hub for that mount.

Jordan Wilson, CasterHQ · reviewed October 26, 2026 · 844-439-4335 · info@casterhq.com

Sources

[S1] CasterHQ Admin products for 1-2-threaded-stem-casters, pulled October 26, 2026.
[S2] Caster Connection / Mapp threaded stem filter pages.
[S3] GSC 28d audit: 1/2 threaded stem casters query cluster.

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters), Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters