Collars | McMaster-Carr

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

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.

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.

Adjustable-Width
Clamping Shaft Collars

These collars have one knurled side that lets you adjust their width.

Precision Adjustable-Width
Clamping Shaft Collars

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

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.

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.

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.

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 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.

Clamping Two-Piece Shaft
Collars with Wrench Flats

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

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.

Quick-Release Two-Piece
Clamping Shaft Collars

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

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.

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.

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.

Top-and-Bottom Mount
Quick-Release Clamping Shaft Collars

Attach items to tapped holes at either end of these collars and twist the lever to quickly move them along shafts.

Top-and-Bottom Mount Two-Piece
Quick-Release Clamping Shaft Collars

Mount items to either half of these collars and quickly adjust their position on shafts with a lever on the side. The two halves separate, so you can install them anywhere on a shaft without removing components or having access to the end.

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.

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.

Square Shaft Collars

Install these two-piece collars square shafts.

Hex Shaft Collars

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

Hex 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.

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.

D-Profile Shaft Collars

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

D-Profile Two-Piece Shaft Collars

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

Bearing Retaining Locknuts

With a nylon insert that grips your threaded shaft or spindle without damaging the threads, these locknuts—sometimes called shaft nuts—keep bearings, bushings, gears, and pulleys in place.

Bearing Retaining Jam Nuts

Used in pairs or with another bearing retaining nut, these jam nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle.

Bearing Retaining Nuts

Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle.

Quick-Release Shaft Collar Handles

These threaded handles take the place of a set screw, allowing you to move set screw shaft collars without additional tools—useful for when the collar serves as a stroke limiter or mounting clamp.

Shaft Couplings

Set Screw Shaft Couplings

Set screws bite into your shaft to hold these couplings in place.

Clamping Shaft Couplings

Designed to grip evenly around your shaft, clamping couplings provide more holding power than set screw couplings without marring the shaft.

Machinable-Bore
Clamping Shaft Couplings

One end has a finished bore size; the other can be machined to any size—great for connecting to uncommon shaft sizes and shafts that are undersized from wear or oversized from coatings.

High-Grip Clamping Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings.

Two-Piece Shaft Couplings

Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts.

High-Grip Two-Piece Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings.

Made-to-Order Two-Piece
Shaft Couplings

Tell us the size of each shaft, and we'll machine a custom two-piece coupling to meet your needs.

Machinable-Bore
Two-Piece Shaft Couplings

Machine the pilot hole in these couplings to whatever size you need. Often used for shafts that are undersized from wear or oversized from coatings. These couplings are two-piece, so you can remove and reinstall them without moving your shafts.

Two-Piece Shaft Coupling Bridges

When your shafts are not close enough to use standard couplings, these have the length to bridge the gap.

Three-Piece Shaft Couplings

Access one shaft without disconnecting the other. These rigid couplings have a solid bottom that connects the shafts and two top pieces that clamp the shafts independently.

Keyless Locking Shaft Couplings for Overhung Loads

Keyless Locking Shaft
Couplings for Overhung Loads

Support the weight of a motor and transfer torque to another shaft at the same time with these couplings.

Unthreaded Spacers

18-8 Stainless Steel
Unthreaded Spacers

18-8 stainless steel spacers have good corrosion resistance.

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.

316 Stainless Steel
Unthreaded Spacers

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

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.

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.

Acetal Unthreaded Spacers

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

LDPE Unthreaded Spacers

Choose LDPE spacers for their excellent moisture resistance.

Polycarbonate Unthreaded Spacers

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

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.

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.

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.

Unthreaded Spacers for Keyed Shafts

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

Unthreaded Spacers for Tubes

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

Slotted Unthreaded Spacers

An economical alternative to standard unthreaded spacers.

Unthreaded Spacers for Angles

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

Press-Fit Unthreaded Spacers

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

Surface-Mount Nuts

Metric Steel Round-Base Weld Nuts

A smooth base on these metric nuts provides more contact with the mating surface than weld nuts with projections

Steel Round-Base Weld Nuts

A smooth base provides more contact with the mating surface than weld nuts with projections.

Stainless Steel
Round-Base Weld Nuts

Weld these nuts to stainless steel surfaces.

Round-Base Weld
Nuts with Projections

Projections on the base concentrate the weld and provide room for heat to dissipate.

Stainless Steel
Narrow-Base Weld Nuts

Weld these nuts to stainless steel surfaces.

Steel Narrow-Base Weld Nuts

These nuts can be used in channels and tight spaces where round-base weld nuts won't fit.

Metric Steel Narrow-Base Weld Nuts

Use these metric nuts in channels and tight spaces where round-base weld nuts won't fit.

Low-Profile Narrow-Base
Weld Nuts with Projections

Projections on the base concentrate the weld and provide room for heat to dissipate.

Steel Offset-Barrel
Narrow-Base Weld Nuts

Weld these nuts to uncoated steel surfaces.

Stainless Steel Offset-Barrel
Narrow-Base Weld Nuts

Weld these nuts to stainless steel surfaces.

Low-Profile Narrow-Base Weld Nuts

A smooth base provides more contact with the mating surface than weld nuts with projections.

Stainless Steel Adhesive-Mount Nuts

Stainless steel adhesive-mount nuts have excellent corrosion resistance in most environments.

Steel Adhesive-Mount Nuts

These adhesive-mount nuts have a zinc plating for corrosion resistance in wet environments.

Flange Nuts

Mil. Spec. Low-Strength Steel
Distorted-Thread Flange Locknuts

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

High-Strength Steel
Distorted-Thread Flange Locknuts

These flange locknuts are comparable in strength to Grade 8 bolts.

Metric High-Strength Steel
Distorted-Thread Flange
Locknuts—Class 10

Grip metric bolts more securely than nylon-insert flange locknuts—the irregularly shaped threads on these locknuts hold extra tight. They resist vibration and sudden shocks, even after multiple uses.

Stainless Steel Distorted-Thread
Flange Locknuts

Stainless steel flange locknuts have excellent corrosion resistance in most environments.

Medium-Strength Steel Serrated
Flange Locknuts—Grade 5

These flange locknuts have serrations that grip the material surface instead of the threads for easy installation and mild vibration resistance.

Metric Stainless Steel
Nylon-Insert Flange Locknuts

High-Strength Steel Serrated
Flange Locknuts—Grade 8

These nuts are about 25% stronger than medium-strength steel flange locknuts.

Thread-Forming Flange Locknuts

These untapped nylon flange locknuts form threads as they're tightened to resist vibration.

Metric Medium-Strength Steel
Serrated Flange Locknuts—Class 8

Strong enough for use in most machinery and equipment, these medium-strength metric nuts have serrations on the underside of the flange. The serrations prevent the nuts from loosening in applications with mild vibration.

Stainless Steel Nylon-Insert
Flange Locknuts

Low-Strength Steel
Serrated Flange Locknuts

About half the strength of medium-strength steel flange locknuts, these are for light duty fastening applications, such as securing access panels.

Metric High-Strength Steel Serrated
Flange Locknuts—Class 10

They're about 25% stronger than medium-strength steel flange locknuts and comparable in strength to Class 10.9 bolts.

Metric High-Strength Steel
Nylon-Insert Flange
Locknuts—Class 10

Metric Medium-Strength Steel
Nylon-Insert Flange
Locknuts—Class 8

18-8 Stainless Steel
Serrated Flange Locknuts

Made from 18-8 stainless steel, these flange locknuts have good chemical resistance and may be mildly magnetic.

Metric 18-8 Stainless Steel
Serrated Flange Locknuts

Metric 18-8 stainless steel is also known as A2 stainless steel. These flange locknuts have good chemical resistance and may be mildly magnetic.

Medium-Strength Steel Nylon-Insert
Flange Locknuts—Grade F

Grade F nuts are comparable in strength to Grade 5 bolts.

Super-Corrosion-Resistant
316 Stainless Steel
Serrated Flange Locknuts

These flange locknuts have excellent resistance to chemicals and salt water.

High-Strength Steel Nylon-Insert
Flange Locknuts—Grade G

Grade G nuts are comparable in strength to Grade 8 bolts.

Metric Super-Corrosion-Resistant
316 Stainless Steel
Serrated Flange Locknuts

Metric 316 stainless steel is also known as A4 stainless steel. these flange locknuts have excellent resistance to chemicals and salt water.

Stainless Steel High-Torque
12-Point Flange Nuts

Stainless steel nuts have excellent corrosion resistance in most environments.

Steel High-Torque
12-Point Flange Nuts

These flange nuts have a black-oxide finish for mild corrosion resistance in dry environments.

18-8 Stainless Steel Flange Nuts

Made from 18-8 stainless steel, these flange nuts have good chemical resistance.

Metric 18-8 Stainless
Steel Flange Nuts

Skip the washer—these metric stainless steel nuts have a flange that does the same job, spreading pressure across its surface for a strong hold.

Super-Corrosion-Resistant 316
Stainless Steel Flange Nuts

More corrosion resistant than 18-8 stainless steel flange nuts, these nuts have excellent resistance to chemicals and salt water.

Low-Strength Steel Flange Nuts

About half the strength of medium-strength steel flange nuts, use these nuts in light duty fastening applications, such as securing access panels.

Metric Low-Strength
Steel Flange Nuts

About half the strength of medium-strength steel flange nuts, use these metric nuts in light duty fastening applications, such as securing access panels.

Metric Medium-Strength
Steel Flange Nuts—Class 8

No need for a washer—these metric medium-strength steel nuts have a flange that distributes pressure across its surface the way a washer does. Made of medium-strength, Class 8 steel, they’re suitable for fastening most machinery and equipment.

Metric High-Strength Steel
Flange Nuts—Class 10

Also known as collar nuts, these metric nuts have a flange that distributes pressure across the surface, so you don't need a washer. Made of high-strength Class 10 steel, they’re about 25% stronger than medium-strength steel flange nuts.

JIS High-Strength Steel Flange Nuts

These metric nuts meet JIS (Japanese Industrial Standard) B1190.

Fiberglass Flange Nuts

Fiberglass flange nuts are chemical resistant, nonconductive, and lightweight.

Medium-Strength Steel Flange Nuts

These Grade 5 flange nuts are suitable for fastening most machinery and equipment.

High-Strength Steel
Flange Nuts—Grade 8

Made from Grade 8 steel, these nuts are about 25% stronger than medium-strength steel flange nuts.

Stainless Steel Leveling Flange Nuts

Stainless steel nuts have excellent corrosion resistance in most environments.

Steel Leveling Flange Nuts

These flange nuts have a black-oxide finish for mild corrosion resistance in dry environments.

Rotating Flange Nuts

The nut head rotates while the flange remains stationary to prevent scratching the material surface as you tighten the nut.

Flanged Push-Button Slide-Adjust Nuts

Flanged Push-Button
Slide-Adjust Nuts

A flange distributes the load over a large area and reduces stress where the nut meets the material surface.

Thumb Nuts

18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

These thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

Metric 18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

These metric thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

Super-Corrosion-Resistant 316
Stainless Steel Flanged
Knurled-Head Thumb Nuts

More corrosion resistant than 18-8 stainless steel thumb nuts, these have excellent resistance to chemicals and salt water.

Brass Flanged
Knurled-Head Thumb Nuts

These thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes pressure over a large area to reduce stress on your part.

Metric Brass Flanged
Knurled-Head Thumb Nuts

These metric thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes pressure over a large area to reduce stress on your part.

Hex-Head Thumb Nuts

Tighten these thumb nuts with a wrench for more torque while fastening.

Flanged Wing Nuts

The flange distributes the load over a large area and reduces stress where the nut meets the material surface.

Flanged Push Nuts

A flange distributes the load over a large area and reduces stress where the nut meets the material surface.

Washers

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.

Sleeve Washers for Soft Material

Reinforce holes in soft material to keep them from collapsing around screws.

Unthreaded Inserts

Unthreaded Inserts for Metal

Protect bolts from sideways (shear) pressure.

Steel Unthreaded Inserts for Plastic

A zinc-plated finish gives these steel inserts mild corrosion resistance.

Round Shims

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.

Shim Sets for Keyed Shafts

Be prepared with shims in a variety of thicknesses. Also known as arbor spacers, these shims are notched to fit over keyed shafts.

Shims for Keyed Shafts

Precisely shaped to fit snugly on keyed shafts, these shims align, level, and space components. Because of their tight fit, they also help components rotate in unison with the shaft.

Flanged Push-On External Retaining Rings

Flanged Push-On
External Retaining Rings

The wide flange provides better load distribution than standard external push rings and can be used to cover oversized holes. Also known as thread cutting nuts.

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.

Ductwork and Louvers

Standard Duct and Fittings

No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.

Quick-Disconnect Duct and Fittings

Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.

Rectangular Duct and Fittings

Often used in tight spaces, such as in walls and ceilings, rectangular duct allows you to select larger sizes without increasing duct height.

Duct Flanges

Bolt flanges to equipment to start a run of duct.

Weld-On Duct Flanges

Weld flanges to equipment to start a run of duct.

Snap-On Collars for
Drop-Ceiling Diffusers

Connect diffusers to duct.

High-Temperature
Chimney Vents and Fittings

Built to withstand temperatures up to 1000° F, these vent pipes and fittings are for use with boilers, furnaces, stoves, and other equipment that is fired by coal, gas, oil, propane, or wood.

Gas Chimney Vents and Fittings

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.

Roof Louvers

These louvers are gravity operated. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts.

Drill Bushings

Press-Fit Drill Bushings

Finish-Your-Own
Press-Fit Drill Bushings

Larger OD tolerances than standard press-fit bushings allow for finishing. Bushings should be machine ground.

Metric Press-Fit Drill Bushings

Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part.

Made-to-Order Metric
Press-Fit Drill Bushings

Choose the ID, OD, and length you need.

Corrosion-Resistant
Press-Fit Drill Bushings

These bushings are made of stainless steel, which provides excellent corrosion resistance.

Wear-Resistant
Press-Fit Drill Bushings

Made of durable tungsten carbide, these bushings outlast steel.

Press-Fit Drill Bushings with Head

The head prevents these bushings from being pushed through the jig when drilling pressure is extreme. The head sits above the jig plate or can be mounted flush by installing in a counterbored hole.

Metric Press-Fit Drill
Bushings with Head

Even under extreme drilling pressure, these metric bushings won't press through your jig plate. A flanged head on the top of the bushing acts as a stop, preventing it from moving as you push down your drill bit, reamer, or other cutting bit.

Made-to-Order Press-Fit
Drill Bushings with Head

Choose the ID, OD, and length you need.

Removable Drill Bushings

Replace worn bushings and quickly change IDs without needing to repeatedly use a lever press. Instead of pressing bushings in and out of your jig fixture, which can cause damage, these bushings slide in and out of sleeves.

Drill Bushings for Plastic

The serrations grip to prevent rotation and spin out. Press or encase into plastic tooling.

Secure-Hold Drill Bushings for Plastic

The knurls resist force and provide better holding strength than serrations. Encase in plastic tooling.

Removable Drill
Bushings for Thin Metal

Insert these bushings into a drilled hole and twist the lock ring to secure. Reusable and easy to replace, they are held in in place by a separate locking part.

Drill Bushings for
Soft Metal and Wood

The serrations at the top of the bushing grip to prevent rotation and spin out.

Quick-Clamping Coil-Threaded Rods, Screws, and Nuts

Quick-Clamping Coil-Threaded
Rods, Screws, and Nuts

Combine fast-threading components to build a clamping assembly.

Lead Screws and Screw Jacks

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw.

Two-Piece Clamping
Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components.

Metric Clamping Acme
Lead Screw Collars

Install these threaded collars on a metric lead screw to separate and position components, or use them as an end stop to limit travel.

Precision Acme Lead
Screws and Nuts

Also known as single-start and self-locking lead screws and nuts, these have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest.

Flanges for Precision Acme Nuts

Combine with an externally threaded acme nut to create a custom flange nut.

Fast-Travel Precision Acme
Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start.

Metric Precision Acme
Lead Screws and Nuts

Also known as trapezoidal-thread lead screws and nuts.

Metric Fast-Travel Ultra-Precision
Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start.

Metric Ultra-Precision
Lead Screws and Nuts

Fast-Travel Ultra-Precision
Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start.

Ultra-Precision Lead Screws and Nuts

Metric Acme Lead Screws and Nuts

These metric lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. They're commonly found in hand-powered clamps, vises, grates, doors, and work tables.

Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects.

Stackable Threaded-Rod-Mount Clamping Hangers

Stackable Threaded-Rod-Mount
Clamping Hangers

Mount these hangers on top of one another to organize multiple lines of pipe, tubing, and conduit at any angle.

Drilling

Inch Size Depth-Limiting
Drill Bit Stop Collars

Wire Gauge Size Depth-Limiting
Drill Bit Stop Collars

Metric Size Depth-Limiting
Drill Bit Stop Collars

Letter Size Depth-Limiting
Drill Bit Stop Collars

Depth-Limiting Drill
Bit Stop Collar Sets

Masonry Drill Bits for
Anchor Installation

A built-in stop ensures repeatable drilling depths for installing drop-in anchors.

High-Speed Steel Drill-Bit
Countersinks for Screws

Use on plastic and most metals.

Carbon Steel Drill-Bit
Countersinks for Screws

For use on wood and plastic.

High-Speed Steel
Drill-Bit Countersink Sets

For use with most metals in addition to plastic and wood.

Carbon Steel Drill-Bit
Countersink Sets

Use with plastic and wood.

Drill-Bit Counterbores

For jobbers’ and brad-point drill bits.

Drill-Bit Counterbores with Drill Bit

These counterbores are attached to a drill bit for drilling and counterboring in a single step.

Drill-Bit Counterbore Sets

Convert standard jobbers’ and brad-point drill bits into counterboring drill bits that drill and counterbore at the same time.

Building and Machinery Hardware

Aluminum Slip-On
Framing and Fittings

Half the weight of steel, this aluminum framing resists corrosion in wet environments.

Galvanized Iron and Steel
Slip-On Framing and Fittings

To provide corrosion resistance in wet environments, this framing is galvanized.

Stainless Steel Slip-On
Framing and Fittings

Made of 316 stainless steel, this framing has excellent resistance to chemicals and salt water.

Heavy Duty Clamp-On
Framing and Fittings

Thick construction makes this framing strong and sturdy.

Clamp-On Framing and Fittings

Fittings come in two pieces to wrap around rails, so you can quickly modify existing structures without disassembling. Use clamp-on framing and fittings to form temporary partitions, modular conveyors, and workstations.

Flush-Fit Framing and Fittings

Flush connections between rails and fittings give structures a clean finished look. Use this framing for stair rails, work platforms, and workstations.

Press-Fit Framing and Fittings

No need for fasteners—friction holds this framing together. Use press-fit framing and fittings to assemble carts, enclosures, and partitions.

Build-Your-Own Padlock
Hanging Chains

Padlock Hanging Chains

Sanitary Sealing Grommets

Create a sanitary seal on through-wall piping, tubing, and cables in food-, cosmetic-, and pharmaceutical-processing areas.

Metal Pipe and Pipe Fittings

Low-Pressure Steel
Unthreaded Pipe Flanges

Bolt two flanges of the same size together with a gasket to create an access point in a pipe line.

Low-Pressure Press-Connect
Steel Unthreaded Pipe Fittings

Crimp these fittings onto steel pipe to form a tightly sealed connection that’s faster than threading or welding and doesn’t require heat.

High-Pressure Steel
Unthreaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

High-Pressure Steel
Unthreaded Pipe Flanges

Forged for extra strength, these heavy duty unthreaded flanges can withstand high-pressure applications.

Extreme-Pressure Steel
Unthreaded Pipe Flanges

For excellent strength in extreme-pressure applications, choose these heavy duty Class 1500 flanges.

Low-Pressure Steel
Threaded Pipe Flanges

These flanges are for low-pressure applications in noncorrosive environments.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Low-Pressure Galvanized
Steel Threaded Pipe Flanges

The galvanized finish on these Class 150 flanges provides fair corrosion resistance.

High-Pressure Steel
Threaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

High-Pressure Steel Threaded
SAE Two-Piece Pipe Flanges

Combine an adapter with a two-piece pipe flange (sold separately) to build a customized flange connection for noncorrosive environments.

High-Pressure Steel
Threaded Pipe Flanges

Also known as Class 1500 steel flanges, these have the strength to handle high pressures.

Medium-Pressure Steel
Threaded Pipe Flanges

With better strength than our low-pressure steel flanges, these are for use in medium-pressure applications.

Medium-Pressure Galvanized
Steel Threaded Pipe Flanges

Also known as Class 300 flanges, these medium-pressure flanges have a galvanized finish for fair corrosion resistance.

Low-Pressure Stainless Steel
Unthreaded Pipe Flanges

Bolt two same-size flanges together with a gasket to create an access point within a pipe line.

Low-Pressure Press-Connect
Stainless Steel Unthreaded
Pipe Fittings

Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat.

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Use these heavy duty forged flanges for high-pressure applications.

Low-Pressure Stainless
Steel Threaded Pipe Flanges

Also known as Class 150 flanges, these corrosion-resistant flanges are designed for low-pressure pipe applications.

High-Pressure Stainless
Steel Threaded Pipe Flanges

Also known as ANSI flanges.

Aluminum Unthreaded Pipe Flanges

Use these unthreaded flanges in low-pressure applications. Also known as Class 125 flanges.

Low-Pressure Aluminum
Threaded Pipe Flanges

Also known as Class 125 flanges, these are for use in low-pressure applications. Flanges are aluminum, which is lightweight with good corrosion resistance.

Brass and Bronze
Unthreaded Pipe Flanges

Bolt these flanges to another same-size flange with a gasket to create an access point within a pipe line. They are also known as Silbraze flanges.

Low-Pressure Brass and
Bronze Threaded Pipe Flanges

Also known as Class 150 flanges, these brass flanges are designed for low-pressure applications.

Plastic Pipe and Pipe Fittings

Thick-Wall Plastic Pipe
Flanges for Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Class 150 flanges. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation.

Thick-Wall Plastic
Pipe Fittings for Water

Connect these fittings to thick-wall plastic pipe—they have thicker, stronger walls than standard-wall fittings, so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They can withstand pressures up to 900 psi.

Standard-Wall Plastic
Pipe Fittings for Water

Connect these fittings to standard-wall plastic pipe for use in low- to medium-pressure applications up to 810 psi.They are the industry standard for residential and commercial plumbing and water supply applications.

CPVC Pipe Flanges for Hot Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Class 150 flanges. Use in high-temperature plumbing and water supply applications up to 200° F.

Aboveground Standard-Wall
PVC Pipe Flanges for
Drain, Waste, and Vent

Bolt two same-size flanges together with a gasket to create an access point within a line. Also known as Schedule 40 flanges, they are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

Fiberglass Pipe Flanges
for Corrosive Chemicals

Flanges have excellent corrosion resistance to handle a wide range of acids and other highly-corrosive chemicals. Use in metal surface treating applications, plating solution lines, and other chemical process applications. They are reinforced with fiberglass layers for better strength and durability than any of our other pipe flanges for chemicals. Bolt two same-size flanges together with a gasket to create an access point within a line.

Easy-Access CPVC Pipe
Flanges for Chemicals

The grooved ends on these flanges connect to pipe with a clamp, so you can access your chemical process line for routine maintenance. Flanges have excellent chemical resistance to withstand a variety of salt solutions, acids, and other harsh substances. They are also known as Victaulic flanges.

High-Temperature PTFE
Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Made of PTFE, they can handle a wider temperature range than any of our other plastic pipe flanges for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Flame-Retardant PVDF
Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges meet UL 94V0 for flame retardance to delay the spread of flames to valuable equipment. They are PVDF, which is comparable to Kynar, and has the chemical resistance to stand up to solvents and other harsh substances. Also known as Class 150 flanges.

UV-Resistant Polypropylene
Pipe Flanges for Chemicals

Use these polypropylene flanges in outdoor environments—they resist the damaging effects of ultraviolet light. They have the chemical resistance to stand up to acids, solvents, and other harsh substances. Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges are also known as Class 150 flanges.

Drain, Waste, and Vent ABS
Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges are an economical option for gravity-flow chemical waste systems. They are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.

Hose Fittings

Metal Cam-and-Groove Hose
Couplings for Chemicals
and Petroleum

Couplings are metal, which has better durability than plastic cam-and-groove hose couplings. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Metal Cam-and-Groove
Hose Couplings for Water

Metal cam-and-groove couplings have better durability than plastic cam-and-groove couplings.

Tube Fittings for Copper and Brass Tubing

Press-Connect Fittings
for Copper Tubing

Crimp these fittings to copper tubing with a crimping tool for a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings.

Solder-Connect Fittings
for Copper Tubing

Solder these fittings to tubing for a permanent, leak-tight connection. They are also known as sweat fittings.

Parts for Albrecht Taper-Mount Keyless Drill Chucks

Parts for Albrecht Taper-Mount
Keyless Drill Chucks

Plumbing Fixtures and Drains

Floor, Wall, and Ceiling Plates

Add a finishing touch to the area around protruding pipes with these corrosion-resistant plates, which are also known as escutcheons.

Toilet Mounting Flanges

Protective Equipment

Fire-Stop Pipe Collars

Slide these into the small gaps around pipes passing through fire-resistant walls and floors.

Adjustable-Depth Two-Piece Cover
Plates for Fire Sprinkler Heads

Two-Piece Cover Plates
for Fire Sprinkler Heads

Snap these two-piece covers around existing sprinkler heads without having to disassemble or drain the system.

Shaft Collars

Set Screw Shaft Collars

Washdown Set Screw Shaft Collars

Clamping Shaft Collars

Washdown Clamping Shaft Collars

Machinable-BoreClamping Shaft Collars

Quick-Release Clamping Shaft Collars

Extra-Grip Clamping Shaft Collars

Tight-Hold Quick-ReleaseClamping Shaft Collars

Extra-Wide Clamping Shaft Collars

Adjustable-WidthClamping Shaft Collars

Precision Adjustable-WidthClamping Shaft Collars

Quick-ConnectClamping Shaft Collars

CounterbalancedClamping Shaft Collars

Clamping Shaft Collars withPrecision-Ground Face

Ultra-Grip Clamping Shaft Collars

Clamping Two-Piece Shaft Collars

Washdown ClampingTwo-Piece Shaft Collars

Machinable-Bore ClampingTwo-Piece Shaft Collars

Clamping Two-Piece ShaftCollars with Wrench Flats

Extra-Grip ClampingTwo-Piece Shaft Collars

Extra-Wide ClampingTwo-Piece Shaft Collars

Quick-Release Two-PieceClamping Shaft Collars

Inch-to-Metric ClampingTwo-Piece Shaft Collars

Set Screw Two-Piece Shaft Collars

Hinged Shaft Collars

Face-Mount Shaft Collars

Machinable-Face Shaft Collars

Flange-Mount Shaft Collars

Top-and-Bottom MountTwo-Piece Shaft Collars

Top-and-Bottom Mount Shaft Collars

Top-and-Bottom MountQuick-Release Clamping Shaft Collars

Top-and-Bottom Mount Two-PieceQuick-Release Clamping Shaft Collars

Weldable Two-Piece Shaft Collars

Weldable Shaft Collars

Threaded Shaft Collars

Threaded Two-Piece Shaft Collars

Square Shaft Collars

Hex Shaft Collars

Hex Two-Piece Shaft Collars

Support-Rail Shaft Collars

Support-Rail Two-Piece Shaft Collars

D-Profile Shaft Collars

D-Profile Two-Piece Shaft Collars

Bearing Retaining Locknuts

Bearing Retaining Jam Nuts

Bearing Retaining Nuts

Quick-Release Shaft Collar Handles

Shaft Couplings

Set Screw Shaft Couplings

Clamping Shaft Couplings

Machinable-BoreClamping Shaft Couplings

High-Grip Clamping Shaft Couplings

Two-Piece Shaft Couplings

Two-Piece Shaft Couplings

High-Grip Two-Piece Shaft Couplings

Made-to-Order Two-PieceShaft Couplings

Machinable-BoreTwo-Piece Shaft Couplings

Two-Piece Shaft Coupling Bridges

Three-Piece Shaft Couplings

Three-Piece Shaft Couplings

Keyless Locking Shaft Couplings for Overhung Loads

Keyless Locking ShaftCouplings for Overhung Loads

Unthreaded Spacers

18-8 Stainless SteelUnthreaded Spacers

Aluminum Unthreaded Spacers

Zinc-Plated Steel Unthreaded Spacers

316 Stainless SteelUnthreaded Spacers

Zinc-Plated BrassUnthreaded Spacers

Black-Anodized AluminumUnthreaded Spacers

Titanium Unthreaded Spacers

Nylon Unthreaded Spacers

Acetal Unthreaded Spacers

LDPE Unthreaded Spacers

Polycarbonate Unthreaded Spacers

PEEK Unthreaded Spacers

PTFE Unthreaded Spacers

Polypropylene Unthreaded Spacers

Vibration-DampingUnthreaded Spacers

Electrical-InsulatingUnthreaded Spacers

Machinable-Bore
Clamping Shaft Collars

Tight-Hold Quick-Release
Clamping Shaft Collars

Adjustable-Width
Clamping Shaft Collars

Precision Adjustable-Width
Clamping Shaft Collars

Quick-Connect
Clamping Shaft Collars

Counterbalanced
Clamping Shaft Collars

Clamping Shaft Collars with
Precision-Ground Face

Washdown Clamping
Two-Piece Shaft Collars

Machinable-Bore Clamping
Two-Piece Shaft Collars

Clamping Two-Piece Shaft
Collars with Wrench Flats

Extra-Grip Clamping
Two-Piece Shaft Collars

Extra-Wide Clamping
Two-Piece Shaft Collars

Quick-Release Two-Piece
Clamping Shaft Collars

Inch-to-Metric Clamping
Two-Piece Shaft Collars

Top-and-Bottom Mount
Two-Piece Shaft Collars

Top-and-Bottom Mount
Quick-Release Clamping Shaft Collars

Top-and-Bottom Mount Two-Piece
Quick-Release Clamping Shaft Collars

Machinable-Bore
Clamping Shaft Couplings

Made-to-Order Two-Piece
Shaft Couplings

Machinable-Bore
Two-Piece Shaft Couplings

Keyless Locking Shaft
Couplings for Overhung Loads

18-8 Stainless Steel
Unthreaded Spacers

316 Stainless Steel
Unthreaded Spacers

Zinc-Plated Brass
Unthreaded Spacers

Black-Anodized Aluminum
Unthreaded Spacers

Vibration-Damping
Unthreaded Spacers

Electrical-Insulating
Unthreaded Spacers

Stainless Steel
Round-Base Weld Nuts

Round-Base Weld
Nuts with Projections

Stainless Steel
Narrow-Base Weld Nuts

Low-Profile Narrow-Base
Weld Nuts with Projections

Steel Offset-Barrel
Narrow-Base Weld Nuts

Stainless Steel Offset-Barrel
Narrow-Base Weld Nuts

Mil. Spec. Low-Strength Steel
Distorted-Thread Flange Locknuts

High-Strength Steel
Distorted-Thread Flange Locknuts

Metric High-Strength Steel
Distorted-Thread Flange
Locknuts—Class 10

Stainless Steel Distorted-Thread
Flange Locknuts

Medium-Strength Steel Serrated
Flange Locknuts—Grade 5

Metric Stainless Steel
Nylon-Insert Flange Locknuts

High-Strength Steel Serrated
Flange Locknuts—Grade 8

Metric Medium-Strength Steel
Serrated Flange Locknuts—Class 8

Stainless Steel Nylon-Insert
Flange Locknuts

Low-Strength Steel
Serrated Flange Locknuts

Metric High-Strength Steel Serrated
Flange Locknuts—Class 10

Metric High-Strength Steel
Nylon-Insert Flange
Locknuts—Class 10

Metric Medium-Strength Steel
Nylon-Insert Flange
Locknuts—Class 8

18-8 Stainless Steel
Serrated Flange Locknuts

Metric 18-8 Stainless Steel
Serrated Flange Locknuts

Medium-Strength Steel Nylon-Insert
Flange Locknuts—Grade F

Super-Corrosion-Resistant
316 Stainless Steel
Serrated Flange Locknuts

High-Strength Steel Nylon-Insert
Flange Locknuts—Grade G

Metric Super-Corrosion-Resistant
316 Stainless Steel
Serrated Flange Locknuts

Stainless Steel High-Torque
12-Point Flange Nuts

Steel High-Torque
12-Point Flange Nuts

Metric 18-8 Stainless
Steel Flange Nuts

Super-Corrosion-Resistant 316
Stainless Steel Flange Nuts

Metric Low-Strength
Steel Flange Nuts

Metric Medium-Strength
Steel Flange Nuts—Class 8

Metric High-Strength Steel
Flange Nuts—Class 10

High-Strength Steel
Flange Nuts—Grade 8

Flanged Push-Button
Slide-Adjust Nuts

18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

Metric 18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts

Super-Corrosion-Resistant 316
Stainless Steel Flanged
Knurled-Head Thumb Nuts

Brass Flanged
Knurled-Head Thumb Nuts

Metric Brass Flanged
Knurled-Head Thumb Nuts