Threaded Round Spacers | McMaster-Carr

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19,062 Products

Unthreaded Spacers

Aluminum Unthreaded Spacers

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

18-8 Stainless Steel Unthreaded Spacers

18-8 stainless steel spacers have good corrosion resistance.

Zinc-Plated Steel Unthreaded Spacers

The zinc plating provides some corrosion resistance.

316 Stainless Steel Unthreaded Spacers

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

Black-Anodized Aluminum Unthreaded Spacers

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

Zinc-Plated Brass Unthreaded Spacers

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

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.

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.

Polished Unthreaded Spacers

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

Unthreaded Spacer Stock

Cut stock to the length you need.

Vibration-Damping Unthreaded Spacers

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

Electrical-Insulating Unthreaded Spacers

Protect components from electrical charges.

Made-to-Order Unthreaded Spacers

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

Slotted Unthreaded Spacers

An economical alternative to standard unthreaded spacers.

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.

Threaded Standoffs

Female Threaded Round Standoffs

Male Threaded Standoffs

Male-Female Pillar Posts

Female Pillar Posts

Electrical-Insulating Female Threaded Standoffs

Protect components from electrical charges.

Sanitary Threaded Standoffs

Mount components onto food processing lines, walls, and sanitary equipment while leaving space to clean in between.

Hinged Male-Female Threaded Round Standoffs

Hinged Male Threaded Round Standoffs

Hinged Female Threaded Round Standoffs

Press-Fit Threaded Standoffs

Press-Fit Threaded Standoffs with Open End

Press-Fit Threaded Standoffs with Closed End

Miniature Press-Fit Threaded Standoffs with Open End

These standoffs are designed to fit in the limited space of compact electronics such as laptops and hand-held devices.

Splined Press-Fit Threaded Standoffs with Open End

Snap-In Supports

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.

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.

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.

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.

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.

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.

Press-Fit Supports

Press-Fit Keyhole Supports

Once the end is clinched in place, panels with keyholes easily slide on and off these supports.

Press-Fit Snap-Top Supports

With the end clinched in place, the prongs allow you to quickly snap a panel on and off these supports.

Crimp-On Female Threaded Round Standoffs

Often called swage standoffs because you permanently crimp them into a panel.

Round Shims

Ring Shims

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

Ring Shim Sets

Be prepared with ring shims in a variety of thicknesses. These shims fit around fasteners and shafts to precisely align, level, and adjust spacing.

Wide-Rim Ring Shims

Also known as machinery bushings, these shims have an oversized OD to create a larger bearing surface for reduced wear between moving parts.

Tight-Fit Ring Shims

For a snug fit around a shaft, the ID of these shims is held to a tighter tolerance than other round shims.

Peel-Away Layered Ring Shims

These shims are made of layers of metal bonded with adhesive. Remove layers with a utility knife until you get the thickness you need.

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.

Shims for Shortening Screw Shoulders

Slide these shims under the screw head to shorten the shoulder length.

Shims for Lengthening Screw Shoulders

Spin these shims onto screw threads to extend the shoulder length.

Shims for Ball Bearings

Adjust spacing between bearings and other components on shafts. These shims are sized to fit the outer rim of a bearing.

Shims for Ball Bearing Housings

Also called tolerance rings, these rings are for use in stamped, molded, or worn housings to form a tight hold on the bearings.

Disc Shims

Use these round shims as they are, or punch out the middle to create the ID you need.

Shims for Button Dies

Place these shims under sharpened dies to restore their original height and extend their life.

Thread Adapters

Male-Female Round Universal
Thread Adapters with Through Hole

Connect male- and female-threaded parts of different thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through.

Slotted-Drive Male-Female Round Thread Adapters

Inch-to-Inch Male Round Thread Adapters

Metric-to-Metric Male Round Thread Adapters

Left-Hand to Right-Hand Male Thread Adapters

Inch-to-Metric Male Round Thread Adapters

Male Round Universal Thread
Adapters with Through Hole

Join two female-threaded parts of various thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through.

Fastener Assortments

Shim Assortments for Shortening Shoulder Screws

Slide onto a shoulder screw to shorten the length of the shoulder.

Shim Assortments for Button Dies

Place these shims under sharpened dies to restore their original height and extend the life of the dies.

Ring Shim Assortments

Use round shims to precisely align, level, and adjust spacing on shafts and machinery.

Shim Assortments for Lengthening Shoulder Screws

Spin these tight-fitting shims onto your screw's threads to lengthen the shoulder.

Fastener Maintenance Assortments

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.

High-Temperature Dry-Running Sleeve Bearings

Graphite provides a layer of dry lubrication that can operate in high-temperature environments.

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.

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.

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.

Oil-Embedded Sleeve Bearings

Also known as Oilite® bearings.

Panel-Mount Oil-Embedded Sleeve Bearings

Unlike other sleeve bearings, these do not need to be fully inserted into a housing. Their unique shape creates a permanent, secure hold in thin panels.

High-Load Oil-Embedded Sleeve Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.

Vibration-Damping Oil-Embedded Sleeve Bearings

With a flexible layer of rubber sandwiched between an oil-embedded bronze bearing and rigid metal shell, these bearings reduce wear and machinery noise.

Ultra-Low-Friction Oil-Embedded Sleeve Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

High-Load Ultra-Low-Friction
Oil-Embedded Sleeve Bearings

With extra iron and filled with oil containing slippery PTFE, these bearings support heavy loads that frequently start and stop along shafts. They’re sleeve bearings, so they handle loads parallel to the shaft.

Food Industry Oil-Embedded Sleeve Bearings

The oil in these bearings is suitable for incidental contact with food.

High-Load Food Industry
Oil-Embedded Sleeve Bearings

Embedded with oil that is safe for incidental contact with food, these bearings are suitable for use in high-load applications such as bottling and filling lines in food processing plants. They are also known as Super Oilite® bearings.

Sleeve Bearings

Multipurpose Sleeve Bearings

These leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads.

Multipurpose Sleeve Bearings with Groove

A figure-8-shaped groove provides a flow path for lubricant, distributing it evenly along the bearing’s surface.

Corrosion-Resistant Sleeve Bearings

The addition of iron and aluminum gives these aluminum-bronze bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.

Corrosion-Resistant Sleeve Bearings with Groove

Grooves on the inside of the bearing provide a flow path for lubricant, distributing it evenly along the bearing’s surface.

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.

Multipurpose Dry-Running Flanged Sleeve Bearings

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

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.

High-Temperature Dry-Running
Flanged Sleeve Bearings

Graphite provides a layer of dry lubrication that operates in high-temperature environments.

Water-Resistant Dry-Running Flanged Sleeve Bearings

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

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.

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.

Oil-Embedded Flanged Sleeve Bearings

Also known as Oilite® bearings.

High-Load Oil-Embedded Flanged Sleeve Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.

Ultra-Low-Friction Oil-Embedded
Flanged Sleeve Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

High-Load Food Industry Oil-Embedded
Flanged Sleeve Bearings

Support heavy loads that are often found in bottling and filling lines in food plants—these bearings contain extra iron and FDA-compliant oil. They’re flanged, so they handle loads both parallel and perpendicular to the shaft.

Food Industry Oil-Embedded Flanged Sleeve Bearings

The oil in these bearings is suitable for incidental contact with food.

Oil-Embedded Flanged Sleeve
Bearings with Certification

These bearings come with a traceable lot number and material test report. They are also known as Oilite® bearings.

Flanged Sleeve Bearings

Multipurpose Flanged Sleeve Bearings

These leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads.

Corrosion-Resistant Flanged Sleeve Bearings

The addition of iron and aluminum gives these aluminum-bronze bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.

Multipurpose Flanged Sleeve Bearings with Certification

Furnished with a traceable lot number and material test report, these leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads.

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.

High-Temperature Dry-Running Thrust Bearings

Graphite provides a layer of dry lubrication that operates in high-temperature environments.

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.

Oil-Embedded Thrust Bearings

Also known as Oilite® bearings.

High-Load Oil-Embedded Thrust Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.

Ultra-Low-Friction Oil-Embedded Thrust Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

Food Industry Oil-Embedded Thrust Bearings

The oil in these bearings is suitable for incidental contact with food.

High-Load Food Industry
Oil-Embedded Thrust Bearings

Made of 863 iron-copper and embedded with NSF registered H1 oil, these bearings can tackle high-load applications in food plants, such as bottling and filling lines.

High-Load Ultra-Low-Friction
Oil-Embedded Thrust Bearings

Handle heavy loads that frequently start and stop along shafts—these bearings contain extra iron and slippery PTFE lubricant. They’re thrust bearings, which means they support loads parallel to the shaft.

Multipurpose Thrust Bearings

These leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads.

Corrosion-Resistant Thrust Bearings

The addition of iron and aluminum gives these aluminum-bronze bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.

Mounted Sleeve 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.

Extreme-Temperature Dry-Running
Mounted Sleeve Bearings

Capable of handling temperatures from -400° to 750° F, these graphalloy bearings withstand the widest temperature range of any of our mounted bearings.

Mounted Sleeve Bearings

A reliable classic—these babbitt bearings are strong and corrosion resistant.

Oil-Embedded Mounted Sleeve Bearings

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface.

Vibration-Damping Oil-Embedded
Mounted Sleeve Bearings

With a flexible layer of neoprene sandwiched between an oil-embedded bronze bearing and rigid steel shell, these bearings reduce wear and machinery noise.

High-Speed Oil-Embedded Mounted Sleeve Bearings

A strong steel housing allows these bearings to handle higher speeds than standard oil-embedded mounted sleeve bearings.

Mounted Sleeve Bearings with Two-Bolt Flange

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.

Dry-Running Mounted Sleeve
Bearings with Two-Bolt Flange

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

Extreme-Temperature Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Capable of handling temperatures from -400° to 750° F, these graphalloy bearings have the widest temperature range of any of our mounted bearings.

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.

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.

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.

Oil-Embedded Mounted Sleeve
Bearings with Two-Bolt Flange

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface.

Mounted Sleeve Bearings with Four-Bolt Flange

With no moving parts, sleeve bearings are better for dirty environments than ball and roller bearings.

Locating and Support Buttons

Threaded Locating and Support Buttons

Use these buttons to support and position workpieces and fixtures from the bottom or side. Their hex shape lets you screw them into a threaded hole with a wrench or socket.

Press-Fit Locating and Support Buttons

Support and position workpieces and fixtures from the bottom or side. These buttons press into a drilled hole for permanent installation.

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.

Swiveling Locating and Support Buttons

The swiveling tip supports uneven and angled surfaces.

Domed-Head Locating and Support Buttons

Support rounded or irregularly shaped workpieces from the bottom or side with minimal contact.

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.

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.

High-Temperature Load-Rated Threaded-Stud Bumpers

These bumpers withstand temperatures up to 300° F, which is twice as high as our other load rated bumpers. Use them in applications that require specific load capacities. All are reinforced with a base plate for strength. Often used as feet, spacers, and vibration dampers, these bumpers absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines and conveyors. 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.

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

High-Temperature Load-Rated Threaded Bumpers

These bumpers withstand temperatures up to 300° F, which is at least twice as high as our other load rated bumpers. Use them in applications that require specific load capacities. All are reinforced with a base plate for strength. Often used as feet, spacers, and vibration dampers, these bumpers absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines and conveyors. Mount them on a threaded stud.

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.

Bumper Assortments

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

Magnetic Bumpers

A magnetic base makes it easy to attach, move, and replace these bumpers on metal surfaces. Use them for guarding, aligning, and positioning parts.

Adhesive-Back Door Silencers

Simply adhere these silencers to the door frame—no need for an installation hole. Doors close firmly yet quietly with these silencers. They also eliminate the rattling of doors against their frames.

Push-In Door Silencers

Press these silencers into a drilled hole in the door frame. Doors close firmly yet quietly with these silencers. They also eliminate the rattling of doors against their frames.

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

Set Screw Shaft Collars

Keep these shaft collars in place by tightening their set screw into the shaft.

Washdown Set Screw Shaft Collars

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

Clamping Shaft Collars

These metal collars are stronger than plastic shaft collars.

Washdown Clamping Shaft Collars

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

Machinable-Bore Clamping Shaft Collars

Customize the bore of these collars to precisely fit your shaft.

Quick-Release Clamping Shaft Collars

Installing and removing a collar is as easy as pushing down and lifting up a clamp lever.

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.

Tight-Hold Quick-Release Clamping Shaft Collars

A threaded lever lets you tighten these collars with more torque than other quick-release styles, ensuring that they stay put on your shaft.

Precision Adjustable-Width Clamping Shaft Collars

Two knurled sides provide micrometer-like movement for precise width adjustments.

Extra-Wide Clamping Shaft Collars

Wider than standard shaft collars with twice the number of clamping screws, these ensure a better grip for greater holding power.

Counterbalanced Clamping Shaft Collars

Formed to offset the weight of the clamping screw, these collars won't wobble or vibrate when shafts are spinning—even at high speeds.

Extra-Grip Clamping Shaft Collars

With larger clamping screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws.

Ultra-Grip Clamping Shaft Collars

An embedded sleeve squeezes the shaft as you tighten the clamping screws, allowing these collars to handle up to three times the thrust load of standard collars.

Clamping Shaft Collars with Precision-Ground Face

One side of these collars locks down like a standard one-piece shaft collar; the other has a flush face that's flat to 0.0005", which lets you mount the collars on a shaft next to precision bearings, sprockets, and gears.

Two-Piece Shaft Collars

Clamping Two-Piece Shaft Collars

These metal collars are stronger than plastic shaft collars.

Washdown Clamping Two-Piece Shaft Collars

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

Machinable-Bore Clamping Two-Piece Shaft Collars

Customize the bore of these collars to precisely fit your shaft.

Extra-Grip Clamping Two-Piece Shaft Collars

With larger screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws.

Clamping Two-Piece Shaft Collars with Wrench Flats

Use a wrench to rotate your drive shaft without marring or gouging the shaft.

Quick-Release Two-Piece Clamping Shaft Collars

Make quick adjustments to these shaft collars with a lever on the side.

Extra-Wide Clamping Two-Piece Shaft Collars

Wider than standard shaft collars with twice the number of clamping screws, these ensure a better grip for greater holding power.

Inch-to-Metric Clamping Two-Piece Shaft Collars

Although these collars fit inch-sized shafts, they have a metric OD and width for use with metric equipment.

Set Screw Two-Piece Shaft Collars

Tighten the set screw to bite into an unhardened shaft for a secure hold.

Hinged Shaft Collars

Offering the benefits of a two-piece collar in a one-piece design, these collars swing open for positioning then close anywhere on your shaft.

Mountable Shaft Collars

Flange-Mount Shaft Collars

Three tapped counterbored holes and three through-holes provide mounting flexibility.

Top-and-Bottom Mount Two-Piece Shaft Collars

Secure items to either side of these collars—each half has a flat end with a tapped hole

Top-and-Bottom Mount Shaft Collars

Mount these collars flush against each other or attach components to either side—the round body has flattened ends with tapped holes.

Face-Mount Shaft Collars

Two tapped holes on the face of these collars allow you to fasten them to gears, pulleys, and sprockets.

Machinable-Face Shaft Collars

These collars have two different sides—one locks down like a standard clamping shaft collar; the other has a flush face that you can machine to add slots, holes, and grooves to match your special setups.

Weldable Two-Piece Shaft Collars

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft.

Weldable Shaft Collars

To install, slide these one-piece collars onto the end of your shaft.

Support-Rail Shaft Collars

Support-Rail Two-Piece Shaft Collars

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft.

Support-Rail Shaft Collars

Slide these one-piece collars onto the end of your shaft to create an end-stop for linear components.

Threaded Shaft Collars

To install, thread these one-piece collars onto the end of your shaft.

Threaded Two-Piece Shaft Collars

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft.

Machinable Shaft Ends

One side is unfinished for milling custom pulleys, threaded hubs, sprockets, collars, knobs, sensor targets, or just about anything imaginable; the other side is a one-piece clamping coupling for mounting whatever you’ve created to your shaft.

Linear Bearings

Linear Sleeve Bearings

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

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.

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.

High-Speed Linear Sleeve Bearings

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

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 and Rotary Ball Bearings

Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts.

High-Temperature Linear Ball Bearings

The choice for low-friction motion in high-temperature environments.

Linear Bearings for Support Rail Shafts

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.

High-Temperature Linear Ball
Bearings for Support Rail Shafts

The choice for low-friction motion in high-temperature environments.

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 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.

Fastener Kits for Enclosures

Mount components to your enclosure without worrying about leaks—these kits seal out water from washdowns, rain, and snow when used with enclosures rated NEMA 4X.

Bushings for Chain and Belt Drives

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting.

Self-Centering Screw-Clamp Bushings

A mounting flange prevents movement during tightening, so it's easy to center these bushings in your sprocket.

Quick-Grip Screw-Clamp Bushings

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed.

Light Duty Sleeve Bushings

Reduce the ID of sprockets, pulleys, and gears in low-torque applications.

Self-Adjusting Spring Bushings

A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit.

Split-Tapered Bushings

The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings.

Quick-Disconnect (QD) Bushings

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys.

Unthreaded Spacers

Aluminum Unthreaded Spacers

18-8 Stainless Steel Unthreaded Spacers

Zinc-Plated Steel Unthreaded Spacers

316 Stainless Steel Unthreaded Spacers

Black-Anodized Aluminum Unthreaded Spacers

Zinc-Plated Brass Unthreaded Spacers

Titanium Unthreaded Spacers

Nylon Unthreaded Spacers

Polyethylene Unthreaded Spacers

Polypropylene Unthreaded Spacers

PTFE Unthreaded Spacers

Acetal Unthreaded Spacers

PEEK Unthreaded Spacers

Polycarbonate Unthreaded Spacers

Polished Unthreaded Spacers

Unthreaded Spacer Stock

Vibration-Damping Unthreaded Spacers

Electrical-Insulating Unthreaded Spacers

Made-to-Order Unthreaded Spacers

Slotted Unthreaded Spacers

Slotted Unthreaded Spacers

Unthreaded Spacers for Tubes

Unthreaded Spacers for Tubes

Unthreaded Spacers for Angles

Unthreaded Spacers for Angles

Threaded Standoffs

Female Threaded Round Standoffs

Male Threaded Standoffs

Male-Female Pillar Posts

Female Pillar Posts

Electrical-Insulating Female Threaded Standoffs

Sanitary Threaded Standoffs

Hinged Male-Female Threaded Round Standoffs

Hinged Male Threaded Round Standoffs

Hinged Female Threaded Round Standoffs

Press-Fit Threaded Standoffs

Press-Fit Threaded Standoffs with Open End

Press-Fit Threaded Standoffs with Closed End

Miniature Press-Fit Threaded Standoffs with Open End

Splined Press-Fit Threaded Standoffs with Open End

Snap-In Supports

Vibration-Damping Snap-In Supports

Stackable Snap-In Supports

Adhesive-Back Snap-In Supports

Dual Locking Snap-In Supports

Snap-In Supports

Flat-Top Snap-In Supports

Adhesive-Back Self-Tapping Supports

Adhesive-Back Self-Tapping Supports

Press-Fit Unthreaded Spacers

Press-Fit Unthreaded Spacers

Press-Fit Supports

Press-Fit Keyhole Supports

Press-Fit Snap-Top Supports

Crimp-On Female Threaded Round Standoffs

Crimp-On Female Threaded Round Standoffs

Round Shims

Ring Shims

Ring Shim Sets

Wide-Rim Ring Shims

Tight-Fit Ring Shims

Peel-Away Layered Ring Shims

Color-Coded Ring Shims

Color-Coded Ring Shim Sets

Shims for Shortening Screw Shoulders

Shims for Lengthening Screw Shoulders

Shims for Ball Bearings

Shims for Ball Bearing Housings

Disc Shims

Shims for Button Dies

Thread Adapters

Male-Female Round UniversalThread Adapters with Through Hole

Slotted-Drive Male-Female Round Thread Adapters

Inch-to-Inch Male Round Thread Adapters

Metric-to-Metric Male Round Thread Adapters

Left-Hand to Right-Hand Male Thread Adapters

Inch-to-Metric Male Round Thread Adapters

Male Round Universal ThreadAdapters with Through Hole

Fastener Assortments

Male-Female Round Universal
Thread Adapters with Through Hole

Male Round Universal Thread
Adapters with Through Hole

High-Load Ultra-Low-Friction
Oil-Embedded Sleeve Bearings

High-Load Food Industry
Oil-Embedded Sleeve Bearings

Ultra-Low-Friction Dry-Running
Flanged Sleeve Bearings

Chemical-Resistant Dry-Running
Flanged Sleeve Bearings

High-Temperature Dry-Running
Flanged Sleeve Bearings

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

Ultra-Low-Friction Oil-Embedded
Flanged Sleeve Bearings

High-Load Food Industry Oil-Embedded
Flanged Sleeve Bearings

Oil-Embedded Flanged Sleeve
Bearings with Certification

High-Load Food Industry
Oil-Embedded Thrust Bearings

High-Load Ultra-Low-Friction
Oil-Embedded Thrust Bearings