Square Tube Inserts | McMaster-Carr

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	For Leg Shape For Leg Shape

Square

	For Shape For Shape


Square	Round

Rectangle

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	For Leg Outer Length For Leg Outer Length

	For Leg Outer Width For Leg Outer Width

	For Leg Inner Width For Leg Inner Width

	For Inside Width For Inside Width

	Head Width Head Width

	Base Shape Base Shape

Square

Round

	Base Material Base Material

Plastic

Steel

	For Leg Inner Length For Leg Inner Length

	Head Length Head Length

	Plug Type Plug Type


Snap In	Push In

	For Inside Length For Inside Length

	Material Material

Plastic

Steel

Aluminum

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Maximum Temperature Maximum Temperature

150° to 199° F

200° to 249° F

250° to 499° F

	Base Width Base Width

	Color Color

	Black

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	For Use On For Use On

Square Tubing

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174 Products

Leveling Mount Inserts for Tubular Legs

High-Capacity Leveling Mount Inserts for Tubular Legs

Rated for high load capacity, use these inserts to connect threaded leveling mounts to heavy equipment.

Metric High-Capacity Leveling
Mount Inserts for Tubular Legs

Rated for high load capacity, use these metric inserts to connect threaded leveling mounts to heavy equipment.

Leveling Mount Inserts for Tubular Legs

Slip these inserts into tubular legs to quickly add threads for attaching leveling mounts. They’re often used in the legs of light equipment and furniture.

Leveling Mounts for Tubular Legs

Insert these adjustable mounts into tube ends to level your equipment in a single step.

Caps and Plugs

Snap-In Square Plugs

Flexible ridges or straps hold these plugs in place.

Push-In Square Plugs

Push these plugs into an opening and friction holds them in place.

Metal Square Plugs

More durable than plastic plugs, these provide the most protection from abrasion and impact. Use them to eliminate sharp edges and create a finished look on metal fence and machine-guard posts. Drive them in place with a hammer for a secure fit.

Domed Square Plugs

Often used on metal furniture, these plugs provide a finished look on posts and tubes. Snap them into place and their flexible ridges will provide a secure grip.

Square Caps

Slide these flexible vinyl caps on and they conform for a snug fit.

Heavy Duty Square Caps

Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.

Heat-Shrink Round Caps

Permanently seal pipe, tubing, conduit, and even crimped electrical connections. Slide these flexible caps on and use a heat gun to tightly shrink them to the shape of whatever they are covering. Their outer surface shrinks while the inner wall flows into voids to create a sealed connection.

Mounting Sockets for Friction-Grip Stem Casters

Install these sockets in tubing, angle iron, channel, and wood to hold friction-grip stem casters in place.

Leveling Mount Inserts for Tubular Legs

High-Capacity Leveling Mount Inserts for Tubular Legs

Metric High-Capacity LevelingMount Inserts for Tubular Legs

Leveling Mount Inserts for Tubular Legs

Leveling Mounts for Tubular Legs

Caps and Plugs

Snap-In Square Plugs

Push-In Square Plugs

Metal Square Plugs

Domed Square Plugs

Square Caps

Heavy Duty Square Caps

Heat-Shrink Round Caps

Mounting Sockets for Friction-Grip Stem Casters

Mounting Sockets for Friction-Grip Stem Casters

Metric High-Capacity Leveling
Mount Inserts for Tubular Legs