Sheet Metal Caps | McMaster-Carr

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2,921 Products

Building and Machinery Hardware

Protective Caps

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

74 products

Protective Plugs

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

148 products

Slip-On Framing and Fittings

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

14 products

Press-Fit Framing and Fittings

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

1 product

Strut Channel Framing and Fittings

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

28 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

133 products

Chimney Storm Collars

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

12 products

Chimney Vent Caps

Cover chimneys to reduce downdrafts and block out debris

21 products

Chimney Roof Flashings

Prevent leaks where chimneys pass through roofs

9 products

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Fluid Handling

Tube End Caps

Cover the ends of tube to keep out dirt and debris

337 products

Pipe and Pipe Fittings

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

1,300 products

Hose and Hose Fittings

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

100 products

Electrical

Electrical Enclosure Plugs

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

55 products

Raceway and Raceway Fittings

Route and guard wiring along indoor surfaces

13 products

Facility and Grounds Maintenance

Chain Link Fencing

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

6 products