Plastic Spacers | McMaster-Carr

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6,737 Products

Unthreaded Spacers

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.

Polypropylene Unthreaded Spacers

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

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.

Acetal Unthreaded Spacers

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

PEEK Unthreaded Spacers

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

Polycarbonate Unthreaded Spacers

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

Unthreaded Spacer Stock

Cut stock to the length you need.

Electrical-Insulating Unthreaded Spacers

Protect components from electrical charges.

Unthreaded Spacers for Tubes

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

Threaded Standoffs

Male-Female Threaded Hex Standoffs

Female Threaded Hex Standoffs

Female Threaded Round Standoffs

Electrical-Insulating Female Threaded Standoffs

Protect components from electrical charges.

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.

Stackable Snap-In Supports

Designed for multi-level printed circuit board applications, these self-aligning, through-hole supports have a chamfered female end for stacking. The other end snaps and locks in place for a permanent connection.

Snap-In Supports with Female Connection

Secure the self-tapping female connection with a screw; the other end snaps snugly into a panel, yet can be released for repairs and upgrades.

Dual Locking Snap-In Supports

Both ends snap and lock in place for a permanent connection.

Snap-In Supports

Wings add tension to strengthen the hold in a hole. The other end is releasable for repairs and upgrades.

Snap-In Supports with Male Threaded Connection

Thread the male connection into a tapped hole and snap the other end into a panel for a secure hold that can be released for repairs and upgrades.

Flat-Top Snap-In Supports

The flat top supports boards without drilling a hole while wings on the other end add tension for a secure hold in a hole.

Plastic Washers

Metric Plastic Washers

Mil. Spec. Plastic Washers

Choose these washers for their adherence to strict military standards for material and construction.

Chemical-Resistant Plastic Washers

These washers surpass most other plastic washers when it comes to withstanding chemicals, oil, and grease.

Metric Chemical-Resistant Plastic Washers

These metric washers surpass most other plastic washers when it comes to withstanding chemicals, oil, and grease.

Mil. Spec. Chemical-Resistant Plastic Washers

Choose these washers for their adherence to strict military standards for material and construction.

Electrical-Insulating Plastic Washers

Metric Electrical-Insulating Plastic Washers

Water- and Steam-Resistant Plastic Washers

Low moisture absorption and good heat resistance make these washers suitable for wet and harsh environments.

Metric Water- and Steam-Resistant Plastic Washers

Low moisture absorption and good heat resistance make these metric washers suitable for wet and harsh environments.

High-Temperature Plastic Washers

These washers can withstand temperatures up to 450° or 500° F without degrading.

Metric High-Temperature Plastic Washers

These metric washers can withstand temperatures up to 450° or 500° F without degrading.

Electrical-Insulating Sleeve Washers

Also known as shoulder washers.

Extra-Tall Electrical-Insulating
Rolled-Collar Sleeve Washers

The extra-tall sleeve extends into holes to provide more protection than other rolled-collar washers.

Electrical-Insulating Rolled-Collar Sleeve Washers

As you tighten your screw, the rolled collar compresses under the head to create an insulating barrier between a screw shank and a mating surface.

Electrical-Insulating Cup Sleeve Washers

These washers have a flat bottom and high walls to protect metal screw heads from electrical current.

Plastic Countersunk Washers

Plastic washers are good electrical insulators.

Self-Retaining Washers

A specially shaped ID grips your screw shank tightly.

Plastic Washers for Rigid Insulation

Plastic washers resist moisture, chemicals, and friction and are good electrical insulators.

Spring Lock Washers for Plastic Screws

Designed for use with plastic screws, these acetal washers are good electrical insulators. They are excellent for use under water and in rotating assemblies.

Abrasion-Resistant Rubber and Plastic Sealing Washers

Abrasion-Resistant Rubber
and Plastic Sealing Washers

Made of durable material, these washers resist wear from rubbing and scraping surfaces.

Moisture-Resistant Cushioning Washers

These polyurethane washers withstand wet conditions as well as sunlight, ozone, and some chemicals.

Shims

Ring Shims

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Color-Coded Ring Shims

Precisely align, level, and adjust spacing on fasteners, shafts, and machinery with these shims, which are color-coded by thickness for easy identification.

Color-Coded Ring Shim Sets

Be prepared with ring shims in a variety of thicknesses. These shims are color-coded by thickness for easy identification.

Breakaway Slotted Shims

These shims are scored so you can easily shorten them to the length you need. Designed to fit around screws, they are commonly used in window, door, and cabinet installations.

Color-Coded Slotted Shims

These shims are color-coded by thickness for easy identification. The slot lets you insert, remove, and adjust the shims without disassembling your machinery.

Color-Coded Slotted Shim Sets

Keep slotted shims in a variety of thicknesses on hand with these sets, which are color-coded by thickness for easy identification. The slot lets you insert, remove, and adjust the shims without disassembling your machinery.

Large-Adjustment Slotted Shims

Use these thick shims to align cabinets, doors, and windows, or for other rough leveling.

Color-Coded Horseshoe Shims

These shims are color-coded by thickness for easy identification. The horseshoe design fits around screws.

Interlocking Color-Coded Horseshoe Shims

Clips on these shims hold them together when stacked, and they are color coded by thickness for easy identification. Designed to fit around screws, they are commonly used in window, door, and cabinet installations.

Shims for Hinges

Slide these shims behind your door’s hinge to align it in the jamb.

Shim Stock

Cut this stock into custom shapes to fit your application.

Color-Coded Shim Stock

This shim stock is color coded by thickness for easy identification. Cut it into custom shapes to fit your application.

Color-Coded Shim Stock Sets

Keep shim stock in a variety of thicknesses on hand with these sets, which are color coded by thickness for easy identification. Cut them into custom shapes to fit your application.

Peel-Away Layered Shim Stock

Cut this shim stock into custom shapes to fit your application. Stock is made of layers of material bonded with adhesive; remove layers with a utility knife until you get the thickness you need.

Slotted Tapered Shims

The slot lets you install these rigid shims around screws.

Tapered Shims

Ridges keep these shims from sliding apart when stacked.

Breakaway Shim Plates

These thick shims are scored to make size adjustments easy—break off the excess shim for a custom fit around fasteners or corners. Use them to align cabinets, doors, and windows, or for other rough leveling.

Slip-Resistant Shim Plates

The textured surface of these thick shims keeps them from sliding apart when stacked. Use them to align cabinets, doors, and windows, or for other rough leveling.

Fastener Assortments

Fastener Maintenance Assortments

Washer Assortments

Sleeve Washer Assortments

Also known as shoulder and insulator washers, these nonmetal washers block electrical current and prevent corrosion from mating different types of metal.

Dry-Running Sleeve Bearings

Light Duty Dry-Running Sleeve Bearings

Use where high loads and speeds are not required.

High-Load Dry-Running Sleeve Bearings

A metal shell adds strength.

Panel-Mount Dry-Running Sleeve Bearings

Permanently and securely install these self-clinching bearings into panels, with no need for precision-bored holes or machined mounts.

Food Industry Dry-Running Sleeve Bearings

Made of FDA-listed materials or FDA compliant, these bearings are for use in food applications. They also withstand caustic and washdown environments.

Ultra-Low-Friction Dry-Running Sleeve Bearings

Use these bearings in applications with frequent starts and stops because they operate with very little friction.

Chemical-Resistant Dry-Running Sleeve Bearings

These bearings stand up to a wider range of chemicals than other dry-running sleeve bearings.

Water-Resistant Dry-Running Sleeve Bearings

Good for underwater applications, these bearings won’t swell or warp when wet.

Multipurpose Dry-Running Sleeve Bearings

Reinforced with polyester fabric, these plastic bearings have load and speed capabilities comparable to metal bearings.

Harsh Environment Dry-Running Sleeve Bearings

Even in the presence of harsh chemicals and extreme temperatures, these bearings operate under heavy loads and at high speeds.

Dry-Running Flanged Sleeve Bearings

Light Duty Dry-Running Flanged Sleeve Bearings

Use where high loads and speeds are not required.

Easy-Install Dry-Running Flanged Sleeve Bearings

A slit running along the length of these bearings allows you to quickly slip them into a housing—no tools required.

Food Industry Dry-Running Flanged Sleeve Bearings

Made of FDA listed materials for use in food applications, these bearings also withstand caustic and washdown environments.

Ultra-Low-Friction Dry-Running
Flanged Sleeve Bearings

Use these bearings in applications with frequent starts and stops because they operate with very little friction.

High-Load Dry-Running Flanged Sleeve Bearings

An aluminum shell adds strength.

Chemical-Resistant Dry-Running
Flanged Sleeve Bearings

These bearings stand up to a wider range of chemicals than other dry-running flanged sleeve bearings.

Multipurpose Dry-Running Flanged Sleeve Bearings

Reinforced with polyester fabric, these plastic bearings have load and speed capabilities comparable to metal bearings.

Water-Resistant Dry-Running Flanged Sleeve Bearings

Good for underwater applications, these bearings won’t swell or warp when wet.

High-Speed Self-Aligning Dry-Running
Flanged Sleeve Bearings

Made of acetal with a PTFE filler, these bearings handle velocities up to twice as high as standard acetal bearings. They swivel to compensate for a small amount of shaft misalignment.

Self-Aligning Dry-Running Flanged Sleeve Bearings

Compensating for minor shaft misalignment and not requiring lubrication, these sleeve bearings swivel to self-align and are dry running. They don’t need a housing and you can install and replace them without any tools because they’re slip fit.

Dry-Running Thrust Bearings

Light Duty Dry-Running Thrust Bearings

Use where high loads and speeds are not required.

Food Industry Dry-Running Thrust Bearings

Made of FDA listed materials for use in food applications, these bearings also withstand caustic and washdown environments.

Ultra-Low-Friction Dry-Running Thrust Bearings

Use these bearings in applications with frequent starts and stops because they operate with very little friction.

Water-Resistant Dry-Running Thrust Bearings

Good for underwater applications, these bearings won’t swell or warp when wet.

Chemical-Resistant Dry-Running Thrust Bearings

These bearings stand up to a wider range of chemicals than other dry-running thrust bearings.

High-Load Dry-Running Thrust Bearings

A metal backing adds strength.

Mounted Bearings

Dry-Running Mounted Sleeve
Bearings for Extreme Misalignment

These nylon bearings swivel inside their housing to compensate for over 20° of shaft misalignment.

Dry-Running Mounted Sleeve Bearings

Made from slippery materials, these bearings reduce friction without the oily mess.

Corrosion-Resistant Dry-Running
Mounted Sleeve Bearings

Use these UHMW bearings in wet, corrosive environments.

High-Speed Dry-Running Mounted Sleeve Bearings

Made of acetal blended with PTFE, these bearings handle speeds twice as fast as standard sleeve bearings.

Dry-Running Mounted Sleeve
Bearings with Two-Bolt Flange

Embedded lubricant particles increase the load capacity of these bearings while also making them slippery.

Light Duty Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Use these nylon or acetal bearings for light loads. The closed backing blocks out dust and other contaminants.

High-Speed Light Duty Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Made of acetal with a PTFE filling, these light duty bearings handle speeds twice as fast as standard acetal bearings can.

Food Industry Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Made of FDA listed PEEK, these bearings are suitable for direct contact with food. The closed backing blocks out dust and other contaminants.

High-Speed Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Handling speeds twice as fast as standard mounted sleeve bearings while limiting wear on your system, these bearings are made of PTFE-filled acetal.

Screw-Mount Locating and Support Buttons

Mount through the counterbored hole with a socket head cap screw to support and position workpieces and fixtures from the bottom or side.

Bumpers

Unthreaded Bumpers

Install these bumpers with screws. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces.

Heavy Duty Unthreaded Bumpers

All of these bumpers are reinforced with an embedded washer or base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines. Install them with screws.

Load-Rated Unthreaded Bumpers

Select these bumpers for applications that require specific load capacities. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines and conveyors. Install them with a screw.

Angle Bumpers

These bumpers are at a 90° angle to protect corners on equipment, walls, and docks from damage caused by carts, vehicles, and other moving objects. Install them with screws.

Threaded-Stud Bumpers

Twist these bumpers into a threaded hole. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces.

Load-Rated Threaded-Stud Bumpers

Select these bumpers for applications that require specific load capacities. All are reinforced with a base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines and conveyors. Twist these bumpers into a threaded hole.

Heavy Duty Threaded-Stud Bumpers

All of these bumpers are reinforced with a steel core for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines. Twist them into a threaded hole.

Compressible-Stem Push-In Bumpers

The stem on these bumpers compresses to fit into tight holes. Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Tight-Grip Push-In Bumpers

A ridge on the stem provides a tighter grip than other push-in bumpers. Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Push-In Bumpers

Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Adhesive-Back Bumpers

Press these bumpers into place with the adhesive backing. Use them as feet and spacers on instruments and small appliances to limit sliding, vibration, and noise. They're comparable to Bumpon bumpers.

Load-Rated Adhesive-Back Bumpers

Select these bumpers for applications that require specific load capacities. Use them as feet and spacers on instruments and small appliances to limit sliding, vibration, and noise. Press them into place with the adhesive backing. They're comparable to Bumpon bumpers.

Cut-to-Size Adhesive-Back Bumpers

Make bumpers the size and shape you need. Use them as feet and spacers on instruments and small appliances to limit sliding, vibration, and noise. Press them into place with the adhesive backing.

Threaded Bumpers

Mount these bumpers on a threaded stud. All are reinforced with a steel core or base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines.

Load-Rated Threaded Bumpers

Bumper Assortments

Keep bumpers of various shapes, materials, and mounting styles on hand to solve whatever problems arise.

Wall-Mount Door Stops

Designed to mount at the point of contact between a door handle and the wall, these stops prevent handles from damaging walls when doors swing open.

Wraparound Bumpers for Tubing and Rods

For quick and easy installation, wrap these bumpers around tubing, rods, machinery legs, control shafts, and levers to protect them from impact, dents, and scratches. They're also good for providing protection during shipment and storage.

Crane Bumpers

Designed to withstand repeated heavy hits on bridge or ceiling cranes, these bumpers protect walls or beams as well as extend crane life.

Grommets

Shaft Grommets

Support shafts, bearings, and other moving parts that are routed through a hole. These grommets are slippery to allow parts to move freely in the hole. Install them on thin sheet-metal panels.

Split Grommets

A slit in the side of these grommets allows you to install them around wire, cable, and cords that are already in place. They snap into the hole and their wings hold them tight. Use them to turn rough-edged and uneven holes into smooth, insulated holes.

Shaft Collars

Washdown Set Screw Shaft Collars

Made of chemical-resistant nylon, these collars are suitable for washdown applications.

Washdown Clamping Shaft Collars

Suitable for use in washdown applications, these plastic collars also offer good chemical resistance.

Quick-Connect Clamping Shaft Collars

Internal ball bearings allow you to slide a collar onto your shaft in one direction and then automatically lock the collar in place in the opposite direction.

Washdown Clamping Two-Piece Shaft Collars

Suitable for use in washdown applications, these plastic collars also offer good chemical resistance.

Linear Bearings

Linear Sleeve Bearings

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

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.

Food Industry Linear Sleeve Bearings

Made of FDA-listed materials for use in food applications, these bearings also have excellent chemical and corrosion resistance.

Electrical-Insulating Linear Sleeve Bearings

These fiberglass bearings are lightweight, nonmagnetic, and won’t conduct electricity.

Linear Ball Bearings

Use ball bearings in debris-free environments and when speed is a necessity. They operate with less friction than sleeve bearings, so you can run them at higher speeds.

High-Load Linear Ball Bearings

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard linear ball bearings.

Linear Sleeve Bearings for Support Rail Shafts

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

Food Industry Linear Sleeve
Bearings for Support Rail Shafts

Made of FDA-listed materials for use in food applications, these bearings also have excellent chemical and corrosion resistance.

Linear Ball Bearings for Support Rail Shafts

Ball bearings create less friction than sleeve bearings, so they require less force to operate.

High-Load Linear Ball Bearings for Support Rail Shafts

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard linear ball bearings for support rail shafts.

Vibration-Damping Grommets, Bushings, and Washers

Extreme-Temperature Vibration-Damping Bushings

In addition to having a wider temperature range than our other vibration-damping bushings, these have excellent weather resistance.

Vibration-Damping Bushings

Easier to install than grommets, push these bushings through your mounting hole to dampen vibration. Use them with a vibration-damping washer to isolate vibration.

Ribbed Vibration-Damping Bushings

Ribbed bushings are more flexible than our smooth vibration-damping bushings, so they're easier to install.

Extreme-Temperature Ribbed
Vibration-Damping Bushings

In addition to having a wider temperature range than our other ribbed vibration-damping bushings, these have excellent weather resistance.

Vibration-Damping Washers

Use these in place of normal washers to damp vibration and cushion your joint.

Extreme-Temperature Vibration-Damping Washers

In addition to having a wider temperature range than our other vibration-damping washers, these have excellent weather resistance.

Stops and Spacers for DIN Rails

Position terminal blocks, relays, and other components mounted to DIN rails with these stops and spacers.

Thread Adapters for Drum Openings

Convert drum openings with metric or BSPP threads to a 2 NPT pipe size.

Unthreaded Spacers

Nylon Unthreaded Spacers

Polyethylene Unthreaded Spacers

Polypropylene Unthreaded Spacers

PTFE Unthreaded Spacers

Acetal Unthreaded Spacers

PEEK Unthreaded Spacers

Polycarbonate Unthreaded Spacers

Unthreaded Spacer Stock

Electrical-Insulating Unthreaded Spacers

Unthreaded Spacers for Tubes

Threaded Standoffs

Male-Female Threaded Hex Standoffs

Female Threaded Hex Standoffs

Female Threaded Round Standoffs

Electrical-Insulating Female Threaded Standoffs

Snap-In Supports

Adhesive-Back Snap-In Supports

Stackable Snap-In Supports

Snap-In Supports with Female Connection

Dual Locking Snap-In Supports

Snap-In Supports

Snap-In Supports with Male Threaded Connection

Flat-Top Snap-In Supports

Plastic Washers

Plastic Washers

Metric Plastic Washers

Mil. Spec. Plastic Washers

Chemical-Resistant Plastic Washers

Metric Chemical-Resistant Plastic Washers

Mil. Spec. Chemical-Resistant Plastic Washers

Electrical-Insulating Plastic Washers

Metric Electrical-Insulating Plastic Washers

Water- and Steam-Resistant Plastic Washers

Metric Water- and Steam-Resistant Plastic Washers

High-Temperature Plastic Washers

Metric High-Temperature Plastic Washers

Electrical-Insulating Sleeve Washers

Electrical-Insulating Sleeve Washers

Extra-Tall Electrical-InsulatingRolled-Collar Sleeve Washers

Electrical-Insulating Rolled-Collar Sleeve Washers

Electrical-Insulating Cup Sleeve Washers

Plastic Countersunk Washers

Plastic Countersunk Washers

Self-Retaining Washers

Self-Retaining Washers

Plastic Washers for Rigid Insulation

Plastic Washers for Rigid Insulation

Spring Lock Washers for Plastic Screws

Spring Lock Washers for Plastic Screws

Abrasion-Resistant Rubber and Plastic Sealing Washers

Abrasion-Resistant Rubberand Plastic Sealing Washers

Moisture-Resistant Cushioning Washers

Moisture-Resistant Cushioning Washers

Shims

Ring Shims

Color-Coded Ring Shims

Color-Coded Ring Shim Sets

Breakaway Slotted Shims

Color-Coded Slotted Shims

Color-Coded Slotted Shim Sets

Large-Adjustment Slotted Shims

Color-Coded Horseshoe Shims

Interlocking Color-Coded Horseshoe Shims

Shims for Hinges

Shim Stock

Color-Coded Shim Stock

Color-Coded Shim Stock Sets

Peel-Away Layered Shim Stock

Slotted Tapered Shims

Tapered Shims

Breakaway Shim Plates

Slip-Resistant Shim Plates

Fastener Assortments

Fastener Maintenance Assortments

Washer Assortments

Sleeve Washer Assortments

Dry-Running Sleeve Bearings

Light Duty Dry-Running Sleeve Bearings

High-Load Dry-Running Sleeve Bearings

Extra-Tall Electrical-Insulating
Rolled-Collar Sleeve Washers

Abrasion-Resistant Rubber
and Plastic Sealing Washers

Ultra-Low-Friction Dry-Running
Flanged Sleeve Bearings

Chemical-Resistant Dry-Running
Flanged Sleeve Bearings

High-Speed Self-Aligning Dry-Running
Flanged Sleeve Bearings

Dry-Running Mounted Sleeve
Bearings for Extreme Misalignment

Corrosion-Resistant Dry-Running
Mounted Sleeve Bearings

Dry-Running Mounted Sleeve
Bearings with Two-Bolt Flange

Light Duty Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

High-Speed Light Duty Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Food Industry Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

High-Speed Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange