Aluminum Standoffs | McMaster-Carr

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	Material Material

Aluminum

	Bearing Material Bearing Material

Aluminum

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Thread Size Thread Size

	Hex Size Hex Size

	Shape Shape


Hex	Round

Square

	OD OD

	ID ID

	For Screw Size For Screw Size

	Gender Gender


Female	Male

	Threading Threading

	Fully Threaded
	Partially Threaded

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

DFARS Specialty Metals
COTS-Exempt

	Tensile Strength Tensile Strength

20,000 to 49,999 psi

50,000 to 99,999 psi

Not Rated

	Thread Length Thread Length

	Hardness Hardness

	Thread Fit Thread Fit

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

REACH Compliant

	Hex Length Hex Length

	Thread Pitch Thread Pitch

	Nut Type Nut Type


Coupling	Hex

	For Maximum Panel Thickness For Maximum Panel Thickness

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3,355 Products

Spacers and Standoffs

Male-Female Threaded Hex Standoffs

Female Threaded Hex Standoffs

Female Threaded Round Standoffs

Aluminum Unthreaded Spacers

Made of aluminum, these spacers are lightweight and mildly corrosion resistant.

Black-Anodized Aluminum Unthreaded Spacers

The anodized coating on these lightweight spacers provides increased abrasion resistance over uncoated aluminum.

Unthreaded Spacer Stock

Cut stock to the length you need.

Made-to-Order Unthreaded Spacers

Choose the OD, ID, length, and material and we will accommodate your unique spacer needs.

Aluminum Coupling Nuts

One-third the weight of steel, aluminum coupling nuts resist corrosion in wet environments.

Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Change thread sizes or types, such as fine to coarse threads, on parts without changing gender.

Metric-to-Metric Male-Female Hex Thread Adapters

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Inch-to-Metric Male-Female Hex Thread Adapters

Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Inch-to-Inch Female Hex Thread Adapters

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Metric-to-Metric Female Hex Thread Adapters

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Inch-to-Metric Female Hex Thread Adapters

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Metric-to-Metric Male Hex Thread Adapters

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

Inch-to-Inch Male Hex Thread Adapters

Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection.

Inch-to-Metric Male Hex Thread Adapters

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

Aluminum Unthreaded Inserts for Plastic

These aluminum inserts are lightweight, nonmagnetic, and mildly corrosion resistant.

Standoff Panel-Hanging Brackets

Two-Piece Standoff Panel-Hanging Brackets

Fit these brackets through drilled holes in panels.

Peg-Style Standoff Panel-Hanging Brackets

Use four brackets to support the top and bottom edges of panels without drilling holes in them.

Screw-Grip Standoff Panel-Hanging Brackets

No need to drill holes in panels—tighten the set screw to hold them in place.

Mounting Adapters for DIN Rails

Mount items not designed for DIN rail by attaching them to these adapters.

Mounted Linear Sleeve Bearings for Support Rail Shafts

Virtually maintenance free, these bearings have slippery, chemical-resistant liners that don't require added lubrication.

High-Load High-Speed Mounted Linear
Sleeve Bearings for Support Rail Shafts

With two bearings mounted in a single housing, these bearings have higher load capacities than standard ones. A ceramic liner helps them achieve high speeds as well as rapid acceleration and deceleration.

High-Load Mounted Linear Sleeve
Bearings for Support Rail Shafts

With two bearings mounted in one housing, these sleeve bearings withstand heavy loads. Use them on round support rail shafts for applications that require maximum rigidity.

High-Speed Mounted Linear Sleeve
Bearings for Support Rail Shafts

A ceramic coating makes high speeds as well as rapid acceleration and deceleration possible.

Mounted Linear Bearings

Mounted Linear Sleeve Bearings

Virtually maintenance free, these bearings have slippery, chemical-resistant liners that don't require added lubrication.

High-Load Mounted Linear Sleeve Bearings

With two bearings mounted in one housing, these sleeve bearings can handle heavier loads than standard mounted linear sleeve bearings.

High-Load High-Speed Mounted Linear Sleeve Bearings

With two bearings mounted in a single housing, these bearings have load capacities more than 10 times as high as standard mounted linear sleeve bearings. A ceramic liner helps them achieve high speeds as well as rapid acceleration and deceleration.

High-Speed Mounted Linear Sleeve Bearings

A ceramic coating makes high speeds as well as rapid acceleration and deceleration possible.

Chemical-Resistant Flange-Mounted
Linear Sleeve Bearings

The Frelon liner on these bearings allows them to stand up to a wider range of chemicals than other flange-mounted linear sleeve bearings.

High-Speed Flange-Mounted Linear Sleeve Bearings

A ceramic coating makes high speeds as well as rapid acceleration and deceleration possible.

Linear Bearings

Linear Sleeve Bearings

Because they usually do not require lubrication, linear sleeve bearings outperform linear ball bearings in dirty environments.

High-Speed Ultra-Thin Linear Sleeve Bearings

Use these ultra-thin sleeve bearings in high-speed applications where clearance is a concern.

Ultra-Thin Linear Sleeve Bearings

Thinner than standard linear sleeve bearings, these bearings fit where clearance is a concern.

Dust-Resistant Linear Sleeve Bearings

Ridges on the inside of these bearings wipe away dust and debris as the bearing travels on a shaft.

High-Speed Linear Sleeve Bearings

A ceramic liner makes high speeds as well as rapid acceleration and deceleration possible.

Linear Sleeve Bearings for Support Rail Shafts

Sleeve bearings outperform ball bearings in dirty environments. Use them for low speed applications.

High-Speed Linear Sleeve
Bearings for Support Rail Shafts

These bearings have a ceramic liner to help them achieve high speeds as well as rapid acceleration and deceleration.

Standoffs for Ladders

Secure ladders at a comfortable distance from a supporting surface.

Spacers and Standoffs

Male-Female Threaded Hex Standoffs

Female Threaded Hex Standoffs

Female Threaded Round Standoffs

Aluminum Unthreaded Spacers

Black-Anodized Aluminum Unthreaded Spacers

Unthreaded Spacer Stock