Machinery Spacers | McMaster-Carr

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Material

System of Measurement

Screw Size

Length

Thickness

Thread Size

Washer Type

Shape

Finish

Chromate Conversion Coated

Chrome Plated

Corrosion-Resistant Coated

Dyed

Galvanized

Glazed

Hot-Dipped Galvanized

Performance

Electrically Insulating

Hardness

DFARS Specialty Metals

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Compliant with Exemptions

REACH

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

Yes

Export Control Classification Number (ECCN)

Hex Size

Gender

Specifications Met

Federal Specification

Width

Shaft Diameter

Drill Bit Size

Mount Type

28,352 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

5,257 products

Washers

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

5,182 products

Insulating Washers

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

277 products

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Lock Washers

Resist vibration to prevent fasteners from loosening

1,659 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

167 products

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

156 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

265 products

Cross-Bracing Washers

Connect cross-bracing rods or cables to structural beams; also known as hillside washers

20 products

Shims

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

4,171 products

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

1,260 products

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

13 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

3,936 products

Slotted Bushings

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

34 products

Die Bushings

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

102 products

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

12 products

Electrical Power, Networking, and Controlling

Battery-Terminal Washers

Stop battery acid fumes from corroding terminal posts

1 product

Electrical-Terminal Washers

Prevent wires from slipping out from under screw heads to keep electrical connections intact

6 products

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Power Transmission

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

103 products

Material Handling

Tie-Down Washers

Angled sides align and hold tie-down straps

5 products

Building and Machinery Hardware

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

18 products