Steel Squares | McMaster-Carr

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1,265 Products

Measuring and Inspecting

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

Combination Square Blades

Combination Square Blades

Connect to a combination square head to create a combination square

Combination Square Heads

Combination Square Heads

Attach combination square blades to form a combination square

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

Levels

Ensure surfaces are completely horizontal or vertical

Raw Materials

Steel

Strong, machinable, and weldable but lacks corrosion resistance

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments

Fabricating and Machining

Lathe Tool Blanks

Lathe Tool Blanks

Machine custom lathe tool bits

Building and Machinery Hardware

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Permanently join rails and fittings to assemble heavy duty racks, shelving, and work tables

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

Fastening and Joining

Shim Stock

Cut into custom shapes for leveling and aligning fasteners, machinery components, and more

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