3 1/2 Caps | McMaster-Carr

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Stainless Steel

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DFARS Specialty Metals

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Tapered-Thread Pipe Fittings

Unthreaded Pipe Fittings

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100° F to 249° F

250° F to 499° F

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23 Products

Building and Machinery Hardware

Protective Caps

Protective Caps

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

Protective Plugs

Protective Plugs

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

Fluid Handling

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

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