End Caps | McMaster-Carr

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12,286 Products

Building and Machinery Hardware

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

1,045 products

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

1,010 products

T-Slotted Framing End Caps

Snap onto T-slotted rail ends to cover sharp edges and keep out dust

39 products

T-Slotted Framing Mounts

Connect tubes, switches, casters, and other components to T-slotted rails

18 products

T-Slotted Framing Seals

Fill gaps around doors and panels to keep air, dust, and liquid out of T-slotted framing structures

44 products

T-Slotted Framing Covers

Block dust and debris from entering T-slotted rails; add a wear- or slip-resistant surface

28 products

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

111 products

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

2 products

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

25 products

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

1 product

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

1 product

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

1 product

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

185 products

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

113 products

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

10 products

Fluid Handling

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

606 products

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

1,389 products

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

209 products

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

292 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

395 products

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

260 products

Tube Fittings

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

696 products

Hose and Hose Fittings

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

3,817 products

Thermocouple Connector Covers

Shield thermocouple connectors from dust and debris

1 product

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

5 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

354 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

69 products

Electrical

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

26 products

DIN Rail Spacers

Slide along rails to separate and organize terminal blocks, relays, and other components

1 product

DIN Rail Stops

Keep components such as terminal locks and relays from shifting on rails

11 products

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

2 products

Cold-Shrink Tubing End Caps

Seal crimped electrical connections without heat or tools to protect against moisture

4 products

Electrical-Insulating Wire Caps

Cover live wire ends to protect against shock from accidental contact

3 products

Electrical Connector Caps

Protect data connectors when not in use

78 products

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

3 products

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Electrical Connector Clips

Attach to data connectors to lock them in place, repair them, or color code them

3 products

Battery Vent Caps

Flip open to check water levels and fill wet-cell batteries

1 product

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

3 products

Heating, Ventilation, and Air Conditioning

Duct End Caps

Close off a length of duct

109 products

Duct Vent Caps

Reduce downdrafts and prevent obstructions from entering vents

36 products

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

21 products

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Fabricating and Machining

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

12 products

Tweezer Tip Caps

Protect tweezer tips from damage

1 product

Vise Jaw Liners

Place over vise jaws to protect workpieces from marring

50 products

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

1 product

Fastening and Joining

Retaining Rings

Hold components on a shaft

25 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

66 products

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

23 products

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

35 products

Material Handling

Conveyor Guide Mounting Rod Caps

Cover the ends of conveyor guide mounting rods for a finished look

7 products

Valve Stem Caps

Keep dust and debris out of tire valves

2 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Pegboard Hook End Caps

Slide onto the end of pegboard hooks to protect items from scratches

2 products

Syringe Caps

Cover syringe tips when not in use to protect them and prevent leaks

13 products

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

16 products

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Faucet Hole Covers

Close off unused faucet holes intended for soap dispensers and side sprayers

2 products

Safety Equipment

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

6 products

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

3 products

Power Transmission

Die Spring Screw Caps

Brace springs and control tension in die sets while simplifying maintenance

10 products

Lubricating

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

14 products

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

2 products

Communication

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

2 products