Sheet Metal Caps | McMaster-Carr

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3,402 Products

Building and Machinery Hardware

Protective Caps

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

108 products

Protective Plugs

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

148 products

Press-Fit Framing Caps

Push into press-fit rails for a finished look that keeps out debris

1 product

Strut Channel Plugs

Plug strut channel ends to protect from sharp edges

28 products

Slip-On Framing and Fittings

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

14 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

133 products

Chimney Vent Caps

Cover chimneys to reduce downdrafts and block out debris

20 products

Chimney Storm Collars

Pair with chimney roof flashing to prevent leaks where chimneys pass through roofs

11 products

Chimney Roof Flashings

Prevent leaks where chimneys pass through roofs

8 products

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

1,388 products

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

677 products

Hose and Hose Fittings

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

105 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

55 products

Raceway Caps

Close off the end of a run to keep out dust and debris

13 products

Facility and Grounds Maintenance

Chain Link Fencing

Everything you need to build or repair a chain link fence, from posts to gates

15 products