Masking Caps | McMaster-Carr

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2,124 Products

Building and Machinery Hardware

Protective Caps

Protective Caps

Cover holes at the end of pipe, conduit, and fittings to keep out debris

Protective Plugs

Protective Plugs

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

Fastening and Joining

Press-Fit Nuts

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

Electrical

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

DIN Rail Caps

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

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Containers, Storage, and Furniture

Dust Covers

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

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valve Caps

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)