Rubber Caps | McMaster-Carr

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Acetic Acid (White Vinegar) (20% Concentration)

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1,345 Products

Building and Machinery Hardware

Protective Caps

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

138 products

Protective Plugs

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

373 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

38 products

Strut Channel Framing and Fittings

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

1 product

Hand Grips

Cover handles so they're more comfortable and secure to hold

116 products

Knobs

Position, tighten, and secure fixtures and equipment

56 products

Protective Feet

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

62 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

52 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

11 products

Fluid Handling

Tube End Caps

Cover the ends of tube to keep out dirt and debris

14 products

Tube End Plugs

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

23 products

Tube Fittings

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

233 products

Pipe Plugs

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

17 products

Hose and Hose Fittings

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

26 products

Thermocouple Connector Covers

Shield thermocouple connectors from dust and debris

1 product

Safety Equipment

Hard Hat Lanyards

Attach your hard hat to a harness so it won't fall if it's knocked off your head

1 product

Hard Hat Chin Straps

Hold your hard hat securely in place

3 products

Clothing Kits

Protect your body from fire, electricity, chemicals, and more

1 product

Earplugs

Protect your hearing in loud environments without the bulk of earmuffs

12 products

Spill-Control Drain Covers

Block grates and manholes so liquid can't get in and odors can't get out

6 products

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

3 products

Traffic Posts

Taller than cones to divide lanes of traffic and form barriers

3 products

Fabricating and Machining

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

10 products

Tweezer Tip Caps

Protect tweezer tips from damage

1 product

Jaw Covers for Pliers

Cover the jaws of slip-joint pliers to protect the finish of your workpiece

2 products

Vise Jaw Liners

Place over vise jaws to protect workpieces from marring

7 products

Electrical

Electrical Connector Caps

Protect data connectors when not in use

34 products

Data Port Plugs

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

2 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

8 products

Cold-Shrink Tubing End Caps

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

4 products

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

2 products

Capacitor Boots

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

3 products

Facility and Grounds Maintenance

Protective Coatings

Shield surfaces from the surrounding environment

1 product

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

4 products

Lubricating

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

1 product

Fastening and Joining

Socket Retaining Rings

Secure sockets and adapters to impact tools

3 products

Sealing

Drum Plug Gaskets

Form a tighter seal in drum openings than with a drum plug alone

5 products

Drum Gaskets

Seal lids onto steel and stainless steel drums

6 products