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Threaded Stem Casters - 1/2"-13x1-1/2" Stem Sizes - Steel Wheels

These steel wheel casters use a 1/2-13 x 1-1/2 in threaded stem for shop carts and racks. Casters in this collection range from 300 to 350 lb per caster. Wheels in this category range from 3 up to 5 in. Semi steel (gray iron) rolls with low effort and shrugs off debris. It is loud and can mark finished floors. Match the thread and stem length to the old caster before you order. Choose swivel casters when the cart must turn in place, rigid casters for straight travel, and add a brake when the cart needs to stay put. Read the listing for the exact wheel size, overall height, and mount shown. Confirm the load rating printed on the title before you order. Measure the old wheel or caster before you buy. Check the floor type and the heaviest load the cart will carry before you choose. Stem aisle: stem casters. Steel wheel aisle: steel wheels.

1/2-13 threaded stem casters with steel wheels by tread

Tread Core Wheel sizes Rated per caster Listed temperature Where it fits
Semi-steel 3, 4 and 5 in 300 to 350 lb -45°F to 180°F rough floors, heat and heavy loads
Cast iron 3-1/2 in 300 lb heat, chips and heavy loads on rough floors

Ratings are for single casters of 1/2-13 threaded stem casters with steel wheels, from product fields [S1].

Wheel sizes

Wheel Treads Rated
3 x 1-1/4 in semi-steel 300 to 350 lb
3-1/2 x 1-1/4 in cast iron 300 lb
4 x 1-1/4 in semi-steel 300 lb
5 x 1-1/4 in semi-steel 300 lb

Choosing 1/2-13 threaded stem casters with steel wheels

  1. Load: plan on three casters carrying a four-caster cart [S2]; at 300 lb each, a common rating here, that is about 900 lb, and the 350 lb top rating covers about 1,050 lb.
  2. Stem: the most common stem on 1/2-13 threaded stem casters with steel wheels is 1/2-13 x 1-1/2 in; check the old stem with calipers before ordering.
  3. Floor: on 1/2-13 threaded stem casters with steel wheels, semi-steel and cast iron suit smooth concrete and heavy loads, but are loud and hard on tile and wood.
  4. Rig: swivel 1/2-13 threaded stem casters with steel wheels are listed.

1/2-13 threaded stem casters with steel wheels questions

How much weight can 1/2-13 threaded stem casters with steel wheels carry?

Single 1/2-13 threaded stem casters with steel wheels are rated 300 to 350 lb.

What stem do 1/2-13 threaded stem casters with steel wheels use?

Most 1/2-13 threaded stem casters with steel wheels list 1/2-13 x 1-1/2 in.

What wheel material is most common on 1/2-13 threaded stem casters with steel wheels?

Semi-steel leads on 1/2-13 threaded stem casters with steel wheels, rated 300 to 350 lb per caster. Cast iron is next at 300 lb.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

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