Sheet Metal Caps | McMaster-Carr

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2,830 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 Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

42 products

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Electrical

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

Fluid Handling

Tube End Caps

Cover the ends of tube to keep out dirt and debris

329 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

Facility and Grounds Maintenance

Chain Link Fencing

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

6 products