Push-On Caps | McMaster-Carr

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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2,268 Products

Building and Machinery Hardware

Protective Caps

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

1,011 products

Protective Plugs

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

863 products

Fastening and Joining

Retaining Rings

Hold components on a shaft

167 products

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

74 products

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

2 products

Threaded Inserts

Create new threads or repair stripped threads

1 product

Quick-Release Pin Retaining Caps

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

23 products

Electrical Power, Networking, and Controlling

Electrical Connector Caps

Protect data connectors when not in use

1 product

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Terminal Covers

Block out dirt and corrosion to protect battery terminals

15 products

Data Port Plugs

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

3 products

Material Handling

Conveyor Guide Mounting Rod Caps

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

7 products

Fluid Handling

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

78 products

Measuring and Inspecting

Caliper Battery Covers

Protect the battery inside your caliper

8 products

Containers, Storage, and Furniture

Pipette Tip Filters

Trap contaminants when dispensing samples in labs and other sanitary environments

2 products

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products