Standoff Sleeves | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	For Screw Size For Screw Size

	OD OD

	ID ID

	Material Material

Fabric-
Reinforced
Buna-N
Rubber

Rubber

Titanium

	Shape Shape


Round	Keyed

	Hardness Hardness

	Tensile Strength Tensile Strength

80,000 psi or greater

Not Rated

	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

DFARS Specialty Metals
Compliant

	Color Color

	Off-White		Black
	Beige		White
	Gray		Blue
	Clear		Green

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

REACH Compliant

	Specifications Met Specifications Met

	Finish Finish

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Dielectric Strength Dielectric Strength

	For Hole Diameter For Hole Diameter

	Mount Type Mount Type

	For Tube OD For Tube OD

	Notch Width Notch Width

	Base Length Base Length

1/2"

3/4"

18mm

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5,036 Products

Unthreaded Spacers

Aluminum Unthreaded Spacers

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

Zinc-Plated Steel Unthreaded Spacers

The zinc plating provides some corrosion resistance.

18-8 Stainless Steel Unthreaded Spacers

18-8 stainless steel spacers have good corrosion resistance.

Zinc-Plated Brass Unthreaded Spacers

Brass makes these spacers electrically conductive and the zinc-plated finish adds corrosion resistance.

Black-Anodized Aluminum Unthreaded Spacers

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

316 Stainless Steel Unthreaded Spacers

These spacers have excellent corrosion resistance and are passivated for enhanced protection.

Titanium Unthreaded Spacers

Choose titanium spacers for their high strength-to-weight ratio and excellent corrosion resistance.

Nylon Unthreaded Spacers

These spacers have excellent wear and abrasion resistance. Exposure to moisture may cause them to expand.

Polyethylene Unthreaded Spacers

Almost nonabsorbent, these unthreaded LDPE and HDPE spacers won't swell when exposed to water.

PEEK Unthreaded Spacers

Use PEEK spacers as an alternative to metal spacers in high-temperature, high-stress applications. They resist chemicals, wear, and moisture.

PTFE Unthreaded Spacers

PTFE spacers have a slippery surface and surpass most plastic spacers when it comes to chemical resistance and performance in extreme temperatures.

Polypropylene Unthreaded Spacers

Polypropylene spacers have a hard surface and resist many chemicals and solvents.

Acetal Unthreaded Spacers

Naturally slippery and wear resistant, acetal spacers also offer some resistance to moisture.

Polycarbonate Unthreaded Spacers

Made of FDA-listed material, these clear spacers can be used in food and beverage applications.

Electrical-Insulating Unthreaded Spacers

Protect components from electrical charges.

Unthreaded Spacer Stock

Cut stock to the length you need.

Polished Unthreaded Spacers

With their mirror-like finish, these are the go-to spacers when appearance matters.

Made-to-Order Unthreaded Spacers

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

Vibration-Damping Unthreaded Spacers

Reduce vibration, shock, and noise with these spacers that compress between components.

Unthreaded Spacers for Tubes

Also known as saddle washers, the curved end fits against round objects such as tube and pipe.

Unthreaded Spacers for Angles

The 45° end fits against an angled surface to create a flat surface for connection.

Slotted Unthreaded Spacers

An economical alternative to standard unthreaded spacers.

Unthreaded Spacers for Keyed Shafts

Also known as arbor spacers, these are notched to space components on a keyed shaft.

Snap-In Supports

Adhesive-Back Snap-In Supports

Stick these supports to surfaces where you don't want to drill a hole. The snap-in end can be released for repairs and upgrades.

Vibration-Damping Snap-In Supports

The ends of these removable supports snap in and compress between panels to reduce vibration of miniature cooling fans in compact electronics.

Adhesive-Back Self-Tapping Supports

In enclosures and other places where you don’t want to drill a hole, mount circuit boards and other thin panels with these supports.

Press-Fit Unthreaded Spacers

Also known as captive spacers, the splines on these bite into a panel for a permanent hold.