Caster T-Nuts & Sockets for Stem Casters

Sizes 1/4, 5/16 and 3/8 inMaterial: zinc-plated steel

Caster sockets and tee nuts give a stem caster something to hold on to in a wood leg, fixture or cart. There are 4-prong zinc tee nuts in 1/4, 5/16 and 3/8 in threads, and a Shepherd 5/16 x 1-1/2 in zinc metal socket for grip neck stems in wood. Measure the stem diameter and thread first, and drill the leg to the socket or tee nut barrel.

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1 type

Match the stem: type, diameter, thread and length. How to measure a stem →

Grip Neck Stem Sockets1 style

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Socket#: SR2402ZN-M36 | Metal Socket for Wood Furniture | Fits 5/16" x 1-1/2" Grip Neck Stem Caster Shepherd

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Shepherd SR2402ZN-M36 5/16" x 1-1/2" Zinc Metal Socket for Wood

Part # 002719-50

$3.00

Volume pricing available

Grip Neck Stem

Size5/16" x 1-1/2"

Capacity—

Wheel—

MountStem 5/16" x 1-1/2"

Type—

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Width 1-1/2"

Frame Zinc Plated Steel

Manufacturer Part #: 002719-50 | Metal Socket for Wood Furniture | Fits 5/16" x...

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Zinc 3/8" Tee Nut with 4 Prongs - Easy Install for Furniture Casters CasterHQ

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3/8" 4-Prong Zinc Tee Nut for 3/8" Threaded Stem Casters

Part # TNUT-ZN38-4P

$3.00

Volume pricing available

Threaded Stem

Size—

Capacity—

Wheel—

MountThreaded Stem

Type—

More Details Less Details

Frame Zinc Plated Steel

Zinc 3/8" Tee Nut - Secure Your Casters with 4-Prong Stability (1-Piece)Experience seamless mobility...

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Zinc 5/16" Tee Nut with 4 Prongs - Easy Install for Furniture Casters CasterHQ

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5/16" 4-Prong Zinc Tee Nut for Threaded Stem Casters

Part # TNUT-ZN516-4P

$2.00

Volume pricing available

Threaded Stem

Size—

Capacity—

Wheel—

MountThreaded Stem

Type—

More Details Less Details

Frame Zinc Plated Steel

Zinc 5/16" Tee Nut - Secure Your Casters with 4-Prong Stability (1-Piece)Experience seamless mobility...

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Zinc 1/4" Tee Nut with 4 Prongs - Easy Install for Furniture Casters CasterHQ

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1/4" 4-Prong Zinc Tee Nut for Threaded Stem Casters

Part # TNUT-ZN14-4P

$2.00

Volume pricing available

Threaded Stem

Size—

Capacity—

Wheel—

MountThreaded Stem

Type—

More Details Less Details

Frame Zinc Plated Steel

Zinc 1/4" Tee Nut - Secure Your Casters with 4-Prong Stability (1-Piece)Experience seamless mobility...

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Caster T-Nuts & Sockets for Stem Casters: buying guide

Caster tee nuts and sockets for stem casters in wood: 4-prong zinc tee nuts in 1/4, 5/16 and 3/8 in, and a Shepherd 5/16 x 1-1/2 in metal socket for grip neck stems.

1/4, 5/16, 3/8 in tee nutsZinc-plated steelGrip neck socketFor wood legs

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Grip-Neck Stem Sockets

2 Styles

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Grip-Ring Stem Sockets

6 Styles

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What is in stock

Part	Fits	Use
4-prong zinc tee nut, 1/4 in	1/4 in threaded stem	Wood legs and panels
4-prong zinc tee nut, 5/16 in	5/16 in threaded stem	Wood legs and panels
4-prong zinc tee nut, 3/8 in	3/8-16 threaded stem	Wood legs, carts and fixtures
Shepherd SR2402ZN-M36 zinc metal socket, 5/16 x 1-1/2 in	5/16 in grip neck stem	Wood furniture legs

Product titles and fields [S1]. Plastic grip ring sockets are not currently listed.

Tee nut or socket?

Tee nut: for threaded stems. The barrel goes into a drilled hole and the four prongs bite into the wood, giving the stem steel threads to screw into.
Grip neck socket: for smooth grip neck stems. The socket presses into a drilled wood leg and the stem snaps into it.
A threaded stem will not hold in a grip neck socket, and a grip neck stem will not hold in a tee nut.

Installing a tee nut

Drill a hole the size of the tee nut barrel, square to the surface.
Tap or press the tee nut in from the side the stem will enter, until the flange sits flat and the prongs are fully in.
Thread the caster in by hand first. Check that the stem is not longer than the hole is deep.

For end grain in a leg, a tee nut is easiest to set before the leg is attached, or use a socket made for the leg.

Casters for these: 3/8 in threaded stem casters and threaded stem casters.

Caster socket and tee nut questions

What size tee nut do I need?

The same size as the caster stem thread: 1/4, 5/16 or 3/8 in. Measure across the threads.

What is the Shepherd metal socket for?

A 5/16 in grip neck stem in a wood furniture leg. It is 1-1/2 in long.

Can I use a tee nut in metal?

Tee nuts are made for wood. For a metal tube, use a threaded insert or an expanding stem caster sized to the tube.

Do you have plastic grip ring sockets?

Not at the moment. Only zinc tee nuts and the Shepherd metal socket are listed.

Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com

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.

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

Caster T-Nuts & Sockets for Stem Casters

Shop by stem type

Caster T-Nuts & Sockets for Stem Casters: buying guide

Shop Caster T-Nuts & Sockets

What is in stock

Tee nut or socket?

Installing a tee nut

Caster socket and tee nut questions

Sources