1/2" Square Drive Sockets | McMaster-Carr

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System of Measurement

Drive Size

Square Drive Size

Bolt Clearance Type

Socket Shape

OD

Drive Style

External 8-Point

External 12-Point

External Pentagon

External Square

External Torx Plus

Tamper-Resistant Torx

Overall Length

15/16" to 1 1/8"

31/32" to 3 1/16"

1 1/2" to 2 1/4"

1 9/16" to 2 1/2"

Socket Style

Drive Type

Sold As

Socket Type

Air Hammer Adapter

Finger-Tightening Adapter

Hex Head Adapter

Hex Shank-to-Square Drive Adapter

Quick-Change Adapter

Ratchet Adapter

Secure-Hold Extension

Secure-Hold Socket Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

Finish

Magnesium Phosphate Coated

Manganese Phosphate Coated

Phosphate Coated

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Thread Size

Nut Diameter

Length

15/16" to 1 1/8"

31/32" to 3 1/16"

1 1/2" to 2 1/4"

1 9/16" to 2 1/2"

Tip Style

Number of Pieces

Wrench Style

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

Nut Clearance Depth

RoHS

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

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1,376 Products

Sockets

Sockets

6-Point Sockets

6-Point Sockets

Get the tightest grip possible on hex fasteners to prevent rounding their points

12-Point Sockets

12-Point Sockets

Grip hex fasteners quickly

Extra-Deep 6-Point Sockets

Extra-Deep 6-Point Sockets

Double the clearance of standard sockets to access nuts on extra-long bolts

8-Point Sockets

8-Point Sockets

Quickly position these sockets on square and external 8-point fasteners

Nonsparking 6-Point Sockets

Nonsparking 6-Point Sockets

Made of aluminum bronze, so they won't create sparks in hazardous environments

Universal-Fit Sockets

Universal-Fit Sockets

Turn multiple shapes and sizes of fasteners with a single socket

Spanner Sockets

Spanner Sockets

Pins grip the slotted sides on bearing nuts for easy tightening and loosening

6-Point Stainless Steel Sockets

6-Point Stainless Steel Sockets

More corrosion resistant and less likely to flake than steel sockets

5-Point Sockets

5-Point Sockets

Turn the nuts found on water and gas valves

Nonmarring 6-Point Sockets

Nonmarring 6-Point Sockets

Firmly grip hex nuts and bolts without rounding or scratching them

Tri-Groove Sockets

Tri-Groove Sockets

Grip the indentations around the outside of tri-groove fasteners

Extended 6-Point Flex Sockets

Extended 6-Point Flex Sockets

An integrated extension eliminates the risk of your socket falling when reaching

Fastener-Holding 6-Point Sockets

Fastener-Holding 6-Point Sockets

Hold fasteners securely in place as you drive them in

External Torx-Plus Sockets

External Torx-Plus Sockets

Grasp external Torx-Plus fasteners using squared lobes that resist slipping

External Torx Sockets

External Torx Sockets

Tighten and loosen fasteners with an external Torx drive

12-Point Flex Sockets

12-Point Flex Sockets

Pivot the head to access fasteners from an angle and the 12-point shape quickly grips them

Impact Sockets

6-Point Impact Sockets

6-Point Impact Sockets

Achieve the tightest grip on hex fasteners and prevent rounding

12-Point Impact Sockets

12-Point Impact Sockets

The 12-point shape quickly grips hex fasteners

Thin-Wall 6-Point Impact Sockets

Thin-Wall 6-Point Impact Sockets

Fit these sockets in between tightly spaced fasteners

8-Point Impact Sockets

8-Point Impact Sockets

Quickly position on square fasteners

6-Point Lug Nut-Holding Impact Sockets

6-Point Lug Nut-Holding Impact Sockets

Stack up to five standard 6-point lug nuts in the shank to speed up jobs

6-Point Flex Impact Sockets

6-Point Flex Impact Sockets

Pivot the head on these sockets to access hex fasteners from an angle

Nonmarring 6-Point Impact Sockets

Nonmarring 6-Point Impact Sockets

Firmly grip nuts and bolts without damaging the finish

Extra-Deep 8-Point Impact Sockets

Extra-Deep 8-Point Impact Sockets

Extra length allows access to fasteners on long bolts

5-Point Impact Sockets

5-Point Impact Sockets

Turn 5-point tamper-resistant nuts and bolts often found on water and gas valves

Fastener-Holding 6-Point Impact Sockets

Fastener-Holding 6-Point Impact Sockets

A magnet holds fasteners securely enough to drive self-tapping screws

External Torx Impact Sockets

External Torx Impact Sockets

Tighten and loosen fasteners with an external Torx drive

Nonsparking 12-Point Impact Sockets

Nonsparking 12-Point Impact Sockets

Made of aluminum bronze, so they won't create sparks in hazardous environments

Nonsparking 8-Point Impact Sockets

Nonsparking 8-Point Impact Sockets

Made of aluminum bronze to avoid sparks in hazardous environments; grip square-drive screws quickly

Socket Sets

Wheel Bearing Locknut Socket Sets

Wheel Bearing Locknut Socket Sets

Shaped and sized for compatibility with wheel bearing locknuts on trucks and trailers

6-Point Socket Sets

6-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications

External Torx-Plus Socket Sets

External Torx-Plus Socket Sets

Securely grip external Torx-Plus fasteners at high torque

Economy 6-Point Socket Sets

Economy 6-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported

12-Point Socket Sets

12-Point Socket Sets

Made in the U.S.A., 12 points quickly grip hex fasteners in the toughest industrial applications

Extra-Deep 6-Point Socket Sets

Extra-Deep 6-Point Socket Sets

Double the clearance of standard sockets to access nuts on extra-long bolts

8-Point Socket Sets

8-Point Socket Sets

Grab onto square-drive screws and nuts more quickly than with 4-point sockets

Nonsparking 6-Point Socket Sets

Nonsparking 6-Point Socket Sets

Made of aluminum bronze, so these sets won't create sparks in hazardous environments

Economy 12-Point Socket Sets

Economy 12-Point Socket Sets

Suitable for occasional maintenance work, these are imported; 12 points quickly grip hex fasteners

Fastener-Holding 6-Point Socket Sets

Fastener-Holding 6-Point Socket Sets

Keep nuts and bolts in place as you turn them using two spring-loaded balls

Impact Socket Sets

Nonmarring 6-Point Impact Socket Sets

Nonmarring 6-Point Impact Socket Sets

Tighten or loosen nuts and bolts without damaging the finish

6-Point Impact Socket Sets

6-Point Impact Socket Sets

The hex shape grips hex fasteners and prevents rounding

Reversible 6-Point Impact Socket Sets

Reversible 6-Point Impact Socket Sets

Turn 10 fastener sizes with these five sockets

Dual-Size 12-Point Impact Socket Sets

Dual-Size 12-Point Impact Socket Sets

Use one socket to switch between two fastener sizes

6-Point Flex Impact Socket Sets

6-Point Flex Impact Socket Sets

Pivot the head to access fasteners from an angle

Threaded Rod Sockets

Threaded Rod Sockets

Threaded Rod Sockets

Grip threaded rod for quick installation and removal without damaging the threads

Strut Channel Sockets

Strut Channel Sockets

Strut Channel Sockets

Mount strut channel easily without the use of an extension or other tools

Spark Plug Sockets

Spark Plug Sockets

Spark Plug Sockets

A rubber insert grips the plug to prevent damage

Other Products

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Drum Plug Sockets

Drum Plug Sockets

Turn with a ratchet wrench to install and remove screw-in drum plugs

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Impact Wrenches

Impact Wrenches

Maximize torque to break frozen bolts free and drive fasteners more quickly than other wrenches

Wrench Handles

Generate extra torque to loosen stubborn fasteners; also known as breaker bars

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

Remove broken screws, pipes, and studs without damaging the threads around them

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

Speeder Handles

Speeder Handles

Crank the handle to fasten nuts and bolts quickly

Torque Wrench Heads

Torque Wrench Heads

Pair with torque-limiting handles to create a custom torque wrench

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