Connector Sleeves | McMaster-Carr

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Electrically Insulating

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16,192 Products

Electrical Power, Networking, and Controlling

Conduit and Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

972 products

Heat-Shrink Tubing Splitters

Insulate and seal where wire splits off from cable; also known as breakout boots

23 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

47 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

128 products

Amphenol Connectors

Attach wires to a circuit board

19 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

25 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

378 products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Fluid Handling

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

159 products

Pipe Collars

Clamp pipe passing through floors and walls

24 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

363 products

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

313 products

Tube Fitting Sleeve and Nut Kits

Everything you need to create a tight seal between a metal tube and a Yor-Lok fitting

31 products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

27 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

85 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

2 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

119 products

Fastening and Joining

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

893 products

Standoffs

Separate, position, or connect components in assemblies

5,257 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

226 products

Coupling Nuts

Connect and extend threaded rods

620 products

Threaded Inserts

Create new threads or repair stripped threads

3,633 products

Spring Pins

Squeeze and insert into tight holes to hold parts in place with tension

1,781 products

Pin Removal Punches

Strike with a hammer to loosen and remove pins and rivets

165 products

Threaded Insert Installation Tools

Install helical, key-locking, slotted-drive, and other threaded inserts

611 products

Pin Insertion Tools

Strike with a hammer to install pins

16 products

Fabricating and Machining

Drill Chuck Arbors

Attach drill chucks to machine spindles

62 products

Lathe Tool Holder Bushings

Increase the diameter of drill bits and other shank-style cutting tools to fit CNC lathe tool blocks

19 products

Tap Collets

Hold your tap firmly in a collet chuck or tap holder to create internal threads in workpieces

84 products

Tap Drivers

Attach taps to drill presses or milling machines that have a Morse taper spindle

19 products

Lathe Tap and Die Holders

Insert into the Morse taper tailstock on a lathe to drive a tap or die

22 products

Tap Holders

Work like sockets to connect taps to ratchet wrenches

17 products

Drill Bushing Lock Sleeves

Press into your jig fixture so you can swap in different bushings and lock them to prevent spinning

25 products

Power Transmission

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products

Material Handling

Wire Rope Stops

Prevent wire rope from pulling out of cleats and guides or keep ends from fraying

33 products

Rope Compression Sleeves

Install a permanent loop at rope ends using a compression tool

25 products

Wire Rope Compression Sleeves

Install a permanent loop at wire rope ends using a compression tool

116 products

Lanyards

Pull, hang, tie down, and tether objects with the attached fittings

3 products