Square Tube Inserts | McMaster-Carr

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	For Shape For Shape


Square	Rectangle

	System of Measurement System of Measurement

	Head Width Head Width

	For Leg Outer Length For Leg Outer Length

	Material Material

	Head Length Head Length

	For Leg Shape For Leg Shape

	Thread Size Thread Size

	Plug Type Plug Type


Snap In	Push In

	For Inside Width For Inside Width

0.34"-0.43"

0.37"-0.4"

0.46"-0.55"

0.584"-0.68"

0.59"-0.68"

0.6"-0.67"

0.709"-0.805"

0.71"-0.8"

0.72"-0.84"

0.73"-0.83"

0.83"-0.93"

0.84"-0.93"

0.84"-0.95"

0.85"-0.92"

0.96"-1.05"

1.02"-1.1"

1.02"-1.13"

1.08"-1.18"

1.1"-1.17"

1.11"-1.2"

1.21"-1.3"

1.23"-1.33"

1.24"-1.33"

1.29"-1.34"

1.29"-1.37"

1.33"-1.43"

1.35"-1.42"

1.42"-1.5"

1.49"-1.58"

1.59"-1.68"

1.73"-1.83"

1.74"-1.83"

1.84"-1.93"

1.85"-1.92"

1.99"-2.08"

2.09"-2.23"

2.24"-2.33"

2.37"-2.45"

2.42"-2.58"

2.49"-2.64"

2.59"-2.68"

2.6"-2.67"

2.76"-2.84"

3.15"-3.26"

3.33"-3.43"

3.44"-3.62"

3.52"-3.76"

3.78"-3.86"

4.34"-4.51"

4.48"-4.73"

5.48"-5.73"

22-23mm

24-27mm

30-32mm

32-35mm

42-46mm

	Base Shape Base Shape

	For Leg Inner Width For Leg Inner Width

	For Leg Outer Width For Leg Outer Width

	Base Material Base Material

	Maximum Temperature Maximum Temperature

	For Leg Inner Length For Leg Inner Length

	Color Color

	Black
	Red

	For Inside Length For Inside Length

0.37"-0.4"

0.46"-0.55"

0.584"-0.68"

0.59"-0.68"

0.6"-0.67"

0.709"-0.805"

0.71"-0.8"

0.72"-0.84"

0.73"-0.83"

0.83"-0.93"

0.85"-0.92"

0.87"-0.9"

0.96"-1.05"

1.02"-1.1"

1.08"-1.18"

1.09"-1.18"

1.1"-1.17"

1.11"-1.2"

1.21"-1.3"

1.23"-1.33"

1.29"-1.34"

1.33"-1.43"

1.34"-1.43"

1.35"-1.42"

1.42"-1.5"

1.49"-1.58"

1.59"-1.68"

1.73"-1.83"

1.74"-1.83"

1.83"-1.95"

1.85"-1.92"

1.99"-2.08"

2.09"-2.23"

2.24"-2.33"

2.27"-2.39"

2.29"-2.37"

2.34"-2.43"

2.37"-2.45"

2.42"-2.58"

2.49"-2.64"

2.59"-2.68"

2.73"-2.83"

2.74"-2.83"

2.76"-2.84"

2.84"-2.93"

3.15"-3.26"

3.24"-3.33"

3.33"-3.43"

3.44"-3.62"

3.52"-3.76"

3.6"-3.67"

3.78"-3.86"

3.84"-3.93"

4.34"-4.51"

4.48"-4.73"

4.73"-4.83"

5.48"-5.73"

46-48mm

54-57mm

72-73mm

72-75mm

92-96mm

	Height Height

	For Outside Width For Outside Width

	Base Width Base Width

	Hardness Hardness

	Thread Depth Thread Depth

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230 Products

Plugs

Snap-In Square Plugs

Snap-In Square Plugs

Flexible ridges or straps hold these plugs in place.

Push-In Square Plugs

Push-In Square Plugs

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

Metal Square Plugs

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

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.

Snap-In Rectangular Plugs

Snap-In Rectangular Plugs

Flexible ridges securely hold these plugs in place and allow them to fit a range of hole sizes.

Push-In Rectangular Plugs

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

Ethernet Port Plugs

Ethernet Port Plugs

Shield unused RJ45 type ports on computers and other electronic equipment from debris and moisture.

Caps

Square Caps

Square Caps

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

Heavy Duty Square Caps

Heavy Duty Square Caps

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

Rectangular Caps

Slide these flexible vinyl caps onto rectangular objects and they conform for a snug fit.

Stacking Caps and Targets

Weld these caps and targets to the ends of posts to create stackable shelving and racking systems.

Capacitor Caps

Also known as capacitor boots, these caps protect capacitors and wire connections from damage to extend their service life. They also insulate wire terminal connections to help reduce accidental shocks.

USB Caps

Shield USB connectors from damage, contaminants, and moisture when they are not being used.

Leveling Mount Inserts for Tubular Legs

High-Capacity Leveling Mount
Inserts for Tubular Legs

testString

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

testString

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

Leveling Mount Inserts
for Tubular Legs

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

Leveling Mounts for Tubular Legs

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

Mounting Sockets for Friction-Grip Stem Casters

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.

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)