Steel Squares | McMaster-Carr

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Ferrite Ceramic

Polyurethane Rubber

Stainless Steel

Blade Material

Stainless Steel

System of Measurement

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Length

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Rectangular Tube

Blade Width

Graduations

Head Length

Blade Thickness

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Performance

Bearing Quality

Chemical Resistant

Corrosion Resistant

Crack Resistant

Fatigue Resistant

High Temperature

Impact Resistant

Square Head Material

Angle Measured

0 min to 120 min

Manufacturer

Numeric Graduations

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Steel Grade

1005-1026 Low-Carbon Steel

1006 Low-Carbon Steel

1006-1026 Low-Carbon Steel

1008 Low-Carbon Steel

1008-1010 Low-Carbon Steel

1010 Low-Carbon Steel

1010-1018 Low-Carbon Steel

1018 Low-Carbon Steel

A36 Low-Carbon Steel

For Use On

Stainless Steel

Housing Material

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3,617 Products

Squares

High-Accuracy Squares

High-Accuracy Squares

Manufactured with precision to ensure reliable, repeatable angles

Combination Squares

Combination Squares

Measure, mark, and level with a single tool

Easy-Read Squares with 2 Graduated Blades

Easy-Read Squares with 2 Graduated Blades

Large numbers and dark graduations make measurements easy to read

Starrett High-Accuracy Combination Squares

Starrett High-Accuracy Combination Squares

Manufactured with precision to measure, mark, and level with a single tool

Squares with 2 Graduated Blades

Squares with 2 Graduated Blades

Make both horizontal and vertical measurements

High-Accuracy Square Sets

High-Accuracy Square Sets

Multiple sizes made with precision to ensure reliable, repeatable angles

Squares

Square inside and out for basic angle checking and marking

Starrett High-Accuracy Squares

Starrett High-Accuracy Squares

Manufactured with precision to ensure reliable, repeatable angles

Pipefitting Squares

Pipefitting Squares

Pipe fitting sizes and welding charts are etched in to resist wearing off

Squares with Adjustable Blade

Squares with Adjustable Blade

Measure and mark material exactly where you need to with a sliding blade

Heavy Duty Combination Squares

Heavy Duty Combination Squares

Extra-wide head and large thumbwheel are easy to adjust with gloves

High-Accuracy Combination Squares

High-Accuracy Combination Squares

Manufactured with precision to measure, mark, and level with a single tool

Scratch-Resistant High-Accuracy Combination Squares

Scratch-Resistant High-Accuracy Combination Squares

A titanium coating protects the blade against scratches and wear

Other Products

Steel

Strong, machinable, and weldable—all with material certificates for traceability

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

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

Angle Transfers

Angle Transfers

Duplicate any angle in construction and other applications

Multitools

A variety of tools and blades all in one

Fixture Squares

Fixture Squares

Build different fixtures on multiple sides of the same block

Lathe Tool Blanks

Lathe Tool Blanks

Machine custom lathe tool bits

Magnetic Clamps

Magnetic Clamps

Hold magnetic workpieces at common angles such as 90° or 45°

Levels

Ensure surfaces are completely horizontal or vertical

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

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

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

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

Rotary Angle Indexers

Rotary Angle Indexers

Position round workpieces at precise, repeatable angles for machining flats, hexes, and key slots

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

Toggle Clamps

Lock workpieces onto worktables or objects

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

Plastic

A lightweight alternative to metal and glass

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

C-Clamps

Temporarily secure workpieces together or to a work surface

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