Round Spacers | McMaster-Carr

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System of Measurement

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Screw Size

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Electrical Insulating

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Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

Hardness

Mount Type

Shaft Diameter

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Compliant with Exemptions

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REACH

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DFARS Specialty Metals

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

Specifications Met

Drill Bit Size

Height

Washer Designation

Maximum Temperature

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21,069 Products

Fastening and Joining

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

4,774 products

Standoffs

Separate, position, or connect components in assemblies

1,077 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

66 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

4,722 products

Sealing Washers

Prevent fluids from leaking around fasteners

512 products

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

10 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

157 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

195 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

2,909 products

Coupling Nuts

Connect and extend threaded rods

128 products

Thread Adapters

Join threads of a different type, size, and gender

79 products

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

69 products

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

4,046 products

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

108 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

34 products

Drill Bushing Sleeves

Press into your jig fixture so you can swap different bushings in and out without causing wear

15 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

1,558 products

Panel Hanging Brackets

Mount and remove panels

31 products

Electrical Power, Networking, and Controlling

Battery-Terminal Washers

Stop battery acid fumes from corroding terminal posts

1 product

Power Transmission

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

476 products